The excretory duct of the testes that carries SPERMATOZOA. It rises from the SCROTUM and joins the SEMINAL VESICLES to form the ejaculatory duct.
Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed)
The convoluted cordlike structure attached to the posterior of the TESTIS. Epididymis consists of the head (caput), the body (corpus), and the tail (cauda). A network of ducts leaving the testis joins into a common epididymal tubule proper which provides the transport, storage, and maturation of SPERMATOZOA.
A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.
A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research.
Precursor of epinephrine that is secreted by the adrenal medulla and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers and of the diffuse projection system in the brain arising from the locus ceruleus. It is also found in plants and is used pharmacologically as a sympathomimetic.
The synapse between a neuron (presynaptic) and an effector cell other than another neuron (postsynaptic). Neuroeffector junctions include synapses onto muscles and onto secretory cells.
Nutrient blood vessels which supply the walls of large arteries or veins.
Surgical removal of the ductus deferens, or a portion of it. It is done in association with prostatectomy, or to induce infertility. (Dorland, 28th ed)
Use of electric potential or currents to elicit biological responses.
Drugs that bind to but do not activate alpha-adrenergic receptors thereby blocking the actions of endogenous or exogenous adrenergic agonists. Adrenergic alpha-antagonists are used in the treatment of hypertension, vasospasm, peripheral vascular disease, shock, and pheochromocytoma.
An alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria. Reserpine inhibits the uptake of norepinephrine into storage vesicles resulting in depletion of catecholamines and serotonin from central and peripheral axon terminals. It has been used as an antihypertensive and an antipsychotic as well as a research tool, but its adverse effects limit its clinical use.
A selective adrenergic alpha-1 antagonist used in the treatment of HEART FAILURE; HYPERTENSION; PHEOCHROMOCYTOMA; RAYNAUD DISEASE; PROSTATIC HYPERTROPHY; and URINARY RETENTION.
An indirect sympathomimetic. Tyramine does not directly activate adrenergic receptors, but it can serve as a substrate for adrenergic uptake systems and monoamine oxidase so it prolongs the actions of adrenergic transmitters. It also provokes transmitter release from adrenergic terminals. Tyramine may be a neurotransmitter in some invertebrate nervous systems.
The male reproductive organs. They are divided into the external organs (PENIS; SCROTUM;and URETHRA) and the internal organs (TESTIS; EPIDIDYMIS; VAS DEFERENS; SEMINAL VESICLES; EJACULATORY DUCTS; PROSTATE; and BULBOURETHRAL GLANDS).
The distal and narrowest portion of the SMALL INTESTINE, between the JEJUNUM and the ILEOCECAL VALVE of the LARGE INTESTINE.
One of the two major pharmacological subdivisions of adrenergic receptors that were originally defined by the relative potencies of various adrenergic compounds. The alpha receptors were initially described as excitatory receptors that post-junctionally stimulate SMOOTH MUSCLE contraction. However, further analysis has revealed a more complex picture involving several alpha receptor subtypes and their involvement in feedback regulation.
An imidazoline sympatholytic agent that stimulates ALPHA-2 ADRENERGIC RECEPTORS and central IMIDAZOLINE RECEPTORS. It is commonly used in the management of HYPERTENSION.
A plant alkaloid with alpha-2-adrenergic blocking activity. Yohimbine has been used as a mydriatic and in the treatment of ERECTILE DYSFUNCTION.
A complex network of nerve fibers in the pelvic region. The hypogastric plexus distributes sympathetic fibers from the lumbar paravertebral ganglia and the aortic plexus, parasympathetic fibers from the pelvic nerve, and visceral afferents. The bilateral pelvic plexus is in its lateral extent.
An antihypertensive agent that acts by inhibiting selectively transmission in post-ganglionic adrenergic nerves. It is believed to act mainly by preventing the release of norepinephrine at nerve endings and causes depletion of norepinephrine in peripheral sympathetic nerve terminals as well as in tissues.
Drugs that selectively bind to and activate alpha adrenergic receptors.
Surgical anastomosis or fistulization of the spermatic ducts to restore fertility in a previously vasectomized male.
An adrenergic alpha-2 agonist used as a sedative, analgesic and centrally acting muscle relaxant in VETERINARY MEDICINE.
Cell-surface proteins that bind epinephrine and/or norepinephrine with high affinity and trigger intracellular changes. The two major classes of adrenergic receptors, alpha and beta, were originally discriminated based on their cellular actions but now are distinguished by their relative affinity for characteristic synthetic ligands. Adrenergic receptors may also be classified according to the subtypes of G-proteins with which they bind; this scheme does not respect the alpha-beta distinction.
A saclike, glandular diverticulum on each ductus deferens in male vertebrates. It is united with the excretory duct and serves for temporary storage of semen. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A polyanionic compound with an unknown mechanism of action. It is used parenterally in the treatment of African trypanosomiasis and it has been used clinically with diethylcarbamazine to kill the adult Onchocerca. (From AMA Drug Evaluations Annual, 1992, p1643) It has also been shown to have potent antineoplastic properties.
A chloride channel that regulates secretion in many exocrine tissues. Abnormalities in the CFTR gene have been shown to cause cystic fibrosis. (Hum Genet 1994;93(4):364-8)
An adenine nucleotide containing three phosphate groups esterified to the sugar moiety. In addition to its crucial roles in metabolism adenosine triphosphate is a neurotransmitter.
The thoracolumbar division of the autonomic nervous system. Sympathetic preganglionic fibers originate in neurons of the intermediolateral column of the spinal cord and project to the paravertebral and prevertebral ganglia, which in turn project to target organs. The sympathetic nervous system mediates the body's response to stressful situations, i.e., the fight or flight reactions. It often acts reciprocally to the parasympathetic system.
An alpha-adrenergic antagonist with long duration of action. It has been used to treat hypertension and as a peripheral vasodilator.
The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS.
Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding.
A parasympatholytic anticholinergic used solely to obtain mydriasis or cycloplegia.
Cell membrane proteins that bind opioids and trigger intracellular changes which influence the behavior of cells. The endogenous ligands for opioid receptors in mammals include three families of peptides, the enkephalins, endorphins, and dynorphins. The receptor classes include mu, delta, and kappa receptors. Sigma receptors bind several psychoactive substances, including certain opioids, but their endogenous ligands are not known.
Cell surface proteins that bind PURINES with high affinity and trigger intracellular changes which influence the behavior of cells. The best characterized classes of purinergic receptors in mammals are the P1 receptors, which prefer ADENOSINE, and the P2 receptors, which prefer ATP or ADP.
Inorganic compounds that contain barium as an integral part of the molecule.
A basic element found in nearly all organized tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.
Drugs that bind to and block the activation of ADRENERGIC ALPHA-1 RECEPTORS.
A nonselective alpha-adrenergic antagonist. It is used in the treatment of hypertension and hypertensive emergencies, pheochromocytoma, vasospasm of RAYNAUD DISEASE and frostbite, clonidine withdrawal syndrome, impotence, and peripheral vascular disease.
One of the three major groups of endogenous opioid peptides. They are large peptides derived from the PRO-OPIOMELANOCORTIN precursor. The known members of this group are alpha-, beta-, and gamma-endorphin. The term endorphin is also sometimes used to refer to all opioid peptides, but the narrower sense is used here; OPIOID PEPTIDES is used for the broader group.
The relationship between the dose of an administered drug and the response of the organism to the drug.
Nerve fibers liberating catecholamines at a synapse after an impulse.
Agents affecting the function of, or mimicking the actions of, the autonomic nervous system and thereby having an effect on such processes as respiration, circulation, digestion, body temperature regulation, certain endocrine gland secretions, etc.
An alpha-1 adrenergic agonist that causes prolonged peripheral VASOCONSTRICTION.
A colorless liquid with a fragrant odor. It is used as an intermediate, solvent and in cosmetics.
A direct acting sympathomimetic used as a vasoconstrictor to relieve nasal congestion. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1251)
Substances used for their pharmacological actions on any aspect of neurotransmitter systems. Neurotransmitter agents include agonists, antagonists, degradation inhibitors, uptake inhibitors, depleters, precursors, and modulators of receptor function.
The communication from a NEURON to a target (neuron, muscle, or secretory cell) across a SYNAPSE. In chemical synaptic transmission, the presynaptic neuron releases a NEUROTRANSMITTER that diffuses across the synaptic cleft and binds to specific synaptic receptors, activating them. The activated receptors modulate specific ion channels and/or second-messenger systems in the postsynaptic cell. In electrical synaptic transmission, electrical signals are communicated as an ionic current flow across ELECTRICAL SYNAPSES.
A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.
A gland in males that surrounds the neck of the URINARY BLADDER and the URETHRA. It secretes a substance that liquefies coagulated semen. It is situated in the pelvic cavity behind the lower part of the PUBIC SYMPHYSIS, above the deep layer of the triangular ligament, and rests upon the RECTUM.
A radiation-protective agent that interferes with sulfhydryl enzymes. It may also protect against carbon tetrachloride liver damage.
A histidine decarboxylase inhibitor.
A subclass of alpha-adrenergic receptors that mediate contraction of SMOOTH MUSCLE in a variety of tissues such as ARTERIOLES; VEINS; and the UTERUS. They are usually found on postsynaptic membranes and signal through GQ-G11 G-PROTEINS.
Endogenous substances produced through the activity of intact cells of glands, tissues, or organs.
Nerve fibers which project from cell bodies of AUTONOMIC GANGLIA to SYNAPSES on target organs.
Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility.
A subclass of purinergic P2 receptors that signal by means of a ligand-gated ion channel. They are comprised of three P2X subunits which can be identical (homotrimeric form) or dissimilar (heterotrimeric form).
Congenital structural abnormalities of the UROGENITAL SYSTEM in either the male or the female.
Inorganic compounds derived from hydrochloric acid that contain the Cl- ion.
A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure.
The amount of a substance secreted by cells or by a specific organ or organism over a given period of time; usually applies to those substances which are formed by glandular tissues and are released by them into biological fluids, e.g., secretory rate of corticosteroids by the adrenal cortex, secretory rate of gastric acid by the gastric mucosa.
An alpha-1 adrenergic antagonist that is commonly used as an antihypertensive agent.
Compounds formed by condensation of secologanin with tryptamine resulting in a tetrahydro-beta-carboline which is processed further to a number of bioactive compounds. These are especially found in plants of the APOCYNACEAE; LOGANIACEAE; and RUBIACEAE families.
Compounds containing the hexamethylenebis(trimethylammonium) cation. Members of this group frequently act as antihypertensive agents and selective ganglionic blocking agents.
Either of a pair of tubular structures formed by DUCTUS DEFERENS; ARTERIES; VEINS; LYMPHATIC VESSELS; and nerves. The spermatic cord extends from the deep inguinal ring through the INGUINAL CANAL to the TESTIS in the SCROTUM.
Paired ducts in the human male through which semen is ejaculated into the urethra.
Fluids originating from the epithelial lining of the intestines, adjoining exocrine glands and from organs such as the liver, which empty into the cavity of the intestines.
In GRAM NEGATIVE BACTERIA, multiprotein complexes that function to translocate pathogen protein effector molecules across the bacterial cell envelope, often directly into the host. These effectors are involved in producing surface structures for adhesion, bacterial motility, manipulation of host functions, modulation of host defense responses, and other functions involved in facilitating survival of the pathogen. Several of the systems have homologous components functioning similarly in GRAM POSITIVE BACTERIA.
An alpha-adrenergic blocking agent that is used in Raynaud's disease. It is also used locally in the eye to reverse the mydriasis caused by phenylephrine and other sympathomimetic agents. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1312)
Spermatozoa and other secretions are extensively present in proximal portion of the vas deferens. But similar to the stage one ... the vas deferens in young males is connected to the distal, thin part of the testis. The distal portion of the vas deferens is ... these males still do not appear to contain any sort of secretions or spermatozoa in the distal portion of the vas deferens. ... This is in contrast to adults where spermatozoa are present in all regions of the vas deferens. Spermatogenesis for males of ...
Non-ciliated pseudostratified columnar epithelia are located in the prostate and membranous part of male vas deferens. ... Pseudostratified epithelia function in secretion or absorption. If a specimen looks stratified but has cilia, then it is a ...
Each of these branched tubular glands lined by simple columnar epithelium is an enlargement of the vas deferens in its terminal ... The secretion of this gland is more serous in dogs and more mucous in bulls. It serves to promote the movement of spermatozoa ... All domestic species have these glands except the dog, and their mucus secretion serves to clear the urethra of urine and to ... The function of the white serous secretion is not known. The secretory endpieces of these glands are lined with simple columnar ...
During ejaculation, sperm are propelled up the vas deferens, two ducts that pass over and behind the bladder. Fluids are added ... The prostate as well as the bulbourethral glands add further secretions, and the semen is expelled through the penis. The raphe ... by the seminal vesicles and the vas deferens turns into the ejaculatory ducts, which join the urethra inside the prostate gland ... Females report that their vaginal secretions diminish as intercourse with a circumcised male progresses, and that circumcised ...
Having a target age for surgery reduces the risks of damaging the vas deferens. The vas deferens is in close proximity to the ... At approximately the end of the 7th and the beginning of the 8th week of gestation, the Sertoli cell's secretion of AMH occurs ... During this surgery, the uterus is usually removed and attempts made to dissect away Müllerian tissue from the vas deferens and ... vas deferens and seminal vesicles. However, with PMDS individuals, the Müllerian duct persists instead of regressing, due to ...
Each opens in a vas deferens which bears three diverticula or vesiculae seminales. The male also possesses three pairs of ... which pour their secretions through a duct into the vasa deferentia. These unite and end in a penis which opens posteriorly. In ...
The sperm are transmitted up the vas deferens from the testicles, into the prostate gland as well as through the seminal ... The prostate produces a secretion that forms one of the components of ejaculate. Except for in cases of a dry orgasm, ... April 2001). "Coitus-induced orgasm stimulates prolactin secretion in healthy subjects". Psychoneuroendocrinology. 26 (3): 287- ...
Because the vas deferens deposits seminal fluid into the prostatic urethra, and secretions from the prostate are included in ...
... and epididymis appear to result from abnormal intraluminal secretions, causing congenital absence of the vas deferens and male ... Congenital bilateral absence of vas deferens: Males with congenital bilateral absence of the vas deferens most often have a ... In male patients, the progressive obstruction and destruction of the developing vas deferens (spermatic cord) ... congenital absence of the vas deferens due to increased mucus thickness during fetal development; pancreatic insufficiency due ...
Other areas of smooth muscle contraction are: ureter vas deferens hair (arrector pili muscles) uterus (when pregnant) urethral ... renin secretion from juxtaglomerular cells of the kidney increase renin secretion from kidney increase ghrelin secretion from ... Sep 2010). "Ghrelin secretion stimulated by {beta}1-adrenergic receptors in cultured ghrelinoma cells and in fasted mice". ... At lower levels of circulating epinephrine (physiologic epinephrine secretion), β-adrenoreceptor stimulation dominates since ...
During male seminal emission, sperm is transmitted from the vas deferens into the male urethra via the ejaculatory ducts, which ... Secretions[edit]. Prostatic secretions vary among species. They are generally composed of simple sugars and are often slightly ... "Chemical composition of human semen and of the secretions of the prostate and seminal vehicles". Am J Physiol. 136 (3): 467-473 ... The secretions also contain zinc with a concentration 500-1,000 times the concentration in blood. ...
Brain, K.L. & Bennett, M.R. (1997). Calcium in sympathetic varicosities of mouse vas deferens during facilitation, augmentation ... Bennett, M.R., Farnell, L. & Gibson, W.G. (2000) The probability of quantal secretion within an array of calcium channels of an ... The effect of cations on the electrical properties of the smooth muscle cells of the guinea-pig vas deferens. J. Physiol. 190: ...
The sperm is transferred from each vas deferens into the urethra, partially mixing with secretions from the male accessory sex ... Testis, spermatic vessels and vas deferens A deep dissection showing the vas deferens. Vasectomy Intra vas device Excretory ... The vas deferens is supplied by an accompanying artery (artery of vas deferens). This artery normally arises from the superior ... The vas deferens (Latin: "carrying-away vessel"; plural: vasa deferentia), also called ductus deferens (Latin: "carrying-away ...
The vas deferens is sometimes drawn into (folded into) the phallotheca together with a seminal vesicle. The sperm of arthropods ... a ball of nutritious secretions, as a nuptial gift to aid the female in producing offspring. In males of most species of ...
... male urethra and vas deferens lobar ducts in the salivary glands[citation needed] Stratified columnar epithelium is initially ... The cells function in secretion and protection. Pseudostratified columnar epithelium Soni, Vandana; Pandey, Vikas; Tiwari, ...
Vessels surrounding the vas deferens, some of the vessels in the seminal vesicle, and a vessel from the posterior surface of ... Together with the secretions from the seminal vesicles, these form the major fluid part of semen. It is possible for some men ... Ejaculation of semen will not occur during orgasm if the vas deferens are tied off and seminal vesicles removed, such as during ... When sperm is emitted, it is transmitted from the vas deferens into the male urethra via the ejaculatory ducts, which lie ...
However, the sperm source is a residual or pre-ejaculatory leak from the testicles into the vas deferens, rather than from the ... The secretion is a clear fluid rich in mucoproteins that help to lubricate the distal urethra and neutralize acidic urine which ... Zukerman, Z; Weiss, D. B; Orvieto, R (2003). "Short Communication: Does Preejaculatory Penile Secretion Originating from ...
Vas deferens[edit]. Main article: Vas deferens. The vas deferens, which is also known as the sperm duct, is a thin tube ... Increased secretions of oil and sweat glands.[17]. Secondary development includes the increased activity of the eccrine sweat ... Testosterone secretion reaches a peak at 12 to 14 weeks, and declines to very low levels by the end of the second trimester ( ... Testosterone secretion by the interstitial cells of the testes then causes the growth and development of the mesonephric ducts ...
Failure of the vesicles to form is often associated with absent vas deferens, or an abnormal connection between the vas ... The development and maintenance of the seminal vesicles, as well as their secretion and size/weight, are highly dependent on ... The lower part of the tube ends as a straight tube called the excretory duct which joins with the vas deferens of that side of ... Fluid is secreted from the ejaculatory ducts of the vesicles into the vas deferens, where it becomes part of semen. This then ...
Vas deferens. Main article: Vas deferens. The vas deferens, also known as the sperm duct, is a thin tube approximately 30 ... Testosterone secretion reaches a peak at 12 to 14 weeks, and declines to very low levels by the end of the second trimester ( ... acts as a maturation and storage for sperm before they pass into the vas deferens, that carry sperm to the ampullary gland and ... Testosterone secretion by the interstitial cells of the testes then causes the growth and development of the mesonephric ducts ...
... must not be confused with an obstruction of the vas deferens. If both ejaculatory ducts are ... which may contain only the secretion of accessory prostate glands downstream to the orifice of the ejaculatory ducts. In ... In addition, if an obstruction of the vasa deferentia is the cause for the azoospermia, the concentration of fructose in the ... In contrast, if both vasa deferentia are obstructed (which may be the result of intended sterilization), a semen analysis will ...
Male urogenital structures that arise from the mesonephric duct include the epididymis, vas deferens, and seminal vesicles. The ... In the female, with the absence of anti-Müllerian hormone secretion by the Sertoli cells and subsequent Müllerian apoptosis, ... the vas deferens, and the seminal vesicle. The prostate forms from the urogenital sinus and the efferent ducts form from the ...
... and is believed to be the result of alpha-1 adrenoceptor blockade in the longitudinal muscles of the vas deferens. ... This results in further vasodilation, pupil constriction, an increase in GI tract motility and secretions, and glycogen ...
However, whereas androgen levels are extremely high in the testes, this is not true in the epididymides and vas deferens. As ... In fact, estradiol is a much stronger inhibitor of gonadotropin secretion than is testosterone, and even though circulating ... as well as transport of sperm occurs not only in the testes but also outside of the testes in the epididymides and vas deferens ... ISBN 978-0-203-09205-7. [...] when male levels of androgens are achieved in plasma, their effects on gonadotropin secretion are ...
The main cause of infertility in men with CF is congenital absence of the vas deferens (which normally connects the testes to ... Thickened secretions also may cause liver problems in patients with CF. Bile secreted by the liver to aid in digestion may ... Males can be infertile due to congenital absence of the vas deferens. Symptoms often appear in infancy and childhood, such as ... Many men found to have congenital absence of the vas deferens during evaluation for infertility have a mild, previously ...
The second part of the duct system is the vas deferens, a muscular tube that begins at the lower end of the epididymis.[page ... Thick secretions called smegma collect around the clitoris.[page needed] The vaginal opening and the urethral opening are only ... The testicles are held by the spermatic cord, which is a tubelike structure containing blood vessels, nerves, the vas deferens ... The vas deferens passes upward along the side of the testicles to become part of the spermatic cord. The expanded end is the ...
Internal male reproductive organs include the vas deferens, the ejaculatory ducts, the urethra, the seminal vesicles, and the ... Increased secretions of oil and sweat glands. Boys who defy gender norms may face a higher risk of abuse, and may experience ... The increased secretion of testosterone from the testicles during puberty causes the male secondary sexual characteristics to ...
Tunica albuginea of testis Tunica vaginalis parietal layer Tunica vaginalis visceral layer Tunica vasculosa testis Vas deferens ... The increased secretion of testosterone causes the darkening of the skin and development of pubic hair on the scrotum. The ... Testosterone secretion starts during week eight, reaches peak levels during week 13 and eventually declines to very low levels ... The scrotum contains the external spermatic fascia, testes, epididymis, and ductus deferens. It is a distention of the perineum ...
Thus, wide junctional transmission has been described in many smooth muscles such as vas deferens, urinary bladder, blood ... The probability of secretion from a varicosity may depend on the number of secretosomes that the varicosity possesses, where a ... Accordingly, nerve endings release their neurotransmitters in extracellular space in a manner similar to paracrine secretion. ... at single varicosities or swellings indicates that individual synapses possess different probabilities for the secretion of ...
... vas deferens and seminal vesicles. This action of androgens is supported by a hormone from Sertoli cells, Müllerian inhibitory ... Androstenediol (A5) is the steroid metabolite thought to act as the main regulator of gonadotropin secretion.[citation needed] ...
... and vas deferens are significantly decreased relative to those of normal mice.[14] However, there is a severe testicular ... which is due to a loss of its estradiol-induced secretion from the anterior pituitary.[14] ...
Because the vas deferens deposits seminal fluid into the prostatic urethra, and secretions from the prostate gland itself are ...
Phillipson GT, Petrucco OM, Matthews CD (February 2000). "Congenital bilateral absence of the vas deferens, cystic fibrosis ... an evaluation of the hypothesis that heterozygotes have subnormal active intestinal chloride secretion". Am. J. Hum. Genet. 67 ... "Congenital bilateral absence of vas deferens in the absence of cystic fibrosis". Lancet 344 (8935): 1473-4. . PMID 7968122. ... "Occurrence and relevance of filamentous fungi in respiratory secretions of patients with cystic fibrosis-a review". Med Mycol. ...
The follicles connect to the vas deferens by the vas efferens, and the two tubular vasa deferentia connect to a median ... Other insects such as the Rove beetle Stenus are known to emit pygidial gland secretions that reduce surface tension making it ... A portion of the vas deferens is often enlarged to form the seminal vesicle, which stores the sperm before they are discharged ...
During emission, the two ducts (tubes) called the vasa deferentia (each tube by itself is called a vas deferens), which carry ... "Short Communication: Does Preejaculatory Penile Secretion Originating from Cowper's Gland Contain Sperm?". Journal of Assisted ...
Vas deferens. *Congenital absence of the vas deferens. Other. *Persistent Müllerian duct syndrome ... What seems like a female phenotype is altered by increased testosterone levels secretion.[9] ...
... which is homologous with the vas deferens of amniotes. However, the situation is not always so simple; in cartilaginous fish ... Secretion[edit]. Secretion is the reverse of reabsorption: molecules are transported from the peritubular capillary through the ... Hormone secretion[edit]. The kidneys secrete a variety of hormones, including erythropoietin, calcitriol, and renin. ... The nephron utilizes four processes to alter the blood plasma which flows to it: filtration, reabsorption, secretion, and ...
Wolffian structures are male urogenital structures that include the epididymis, vas deferens, and seminal vesicles that ... In the female, with the absence of anti-Müllerian hormone secretion by the Sertoli cells and subsequent Müllerian apoptosis, ... the vas deferens, and the seminal vesicle. The prostate forms from the urogenital sinus and the efferent ducts form from the ...
Males have a single-lobed gonad, a vas deferens, and a tail specialized for mating, which incorporates spicules. Hermaphrodites ... and their subsequent secretion of the alae in young adults. It is believed that the heterochronic pathway represents an ...
Fluids are added by the seminal vesicles and the vas deferens turns into the ejaculatory ducts, which join the urethra inside ... The prostate as well as the bulbourethral glands add further secretions, and the semen is expelled through the penis. ... During ejaculation, sperm are propelled up the vas deferens, two ducts that pass over and behind the bladder. ... Females report that their vaginal secretions diminish as intercourse with a circumcised male progresses, and that circumcised ...
Animation of the migration of spermatozoa from their origin as germ cells to their exit from the vas deferens. A.) Blood ... Skinner M, McLachlan R, Bremner W (1989). "Stimulation of Sertoli cell inhibin secretion by the testicular paracrine factor ... The sperm move into the vas deferens, and are eventually expelled through the urethra and out of the urethral orifice through ... the artery to the ductus deferens (a branch of the inferior vesical artery, which is a branch of the internal iliac artery). ...
... into the vas deferens where they are propelled by the peristaltic action of muscle layers in the wall of the vas deferens, and ... These membrane extensions increase the surface area of the cell, allowing for greater absorption and secretion. It has been ... Adult human testicle with epididymis: A. Head of epididymis, B. Body of epididymis, C. Tail of epididymis, and D. Vas deferens ... Kim, Howard H.; Goldstein, Marc (2010). "Chapter 53: Anatomy of the epididymis, vas deferens, and seminal vesicle". In Graham, ...
During ejaculation, the smooth muscle in the walls of the vas deferens contracts reflexively in peristalsis, propelling sperm ... Gastric acid secretion:. *Gastrin *G cells. *Histamine *ECL cells. *Somatostatin *D cells ...
Because the vas deferens deposits seminal fluid into the prostatic urethra, and secretions from the prostate gland itself are ...
... absence of the vas deferens, epidymal cysts in MODY type 5 The diagnosis of MODY is confirmed by specific gene testing ... It is now used as a synonym for dominantly inherited, monogenic defects of insulin secretion occurring at any age, and no ...
This he did by ligating (tying off) and severing the main duct of the canals, known as the vas deferens. This "Steinach ... The testes secretion, now known as testosterone, resulted in the female guinea pig developing male sexual behaviour such as ... This led Steinach to theorize that the gland's secretions were responsible for sexuality. He developed the "Steinach operation ...
As sexual stimulation continues, orgasm begins, when the muscles of the pelvic floor, the vas deferens (between the testicles ... April 2001). "Coitus-induced orgasm stimulates prolactin secretion in healthy subjects". Psychoneuroendocrinology. 26 (3): 287- ...
PVD9902, a porcine vas deferens epithelial cell line that exhibits neurotransmitter-stimulated anion secretion and expresses ... PVD9902, a porcine vas deferens epithelial cell line that exhibits neurotransmitter-stimulated anion secretion and expresses ... PVD9902, a porcine vas deferens epithelial cell line that exhibits neurotransmitter-stimulated anion secretion and expresses ... PVD9902, a porcine vas deferens epithelial cell line that exhibits neurotransmitter-stimulated anion secretion and expresses ...
Sperm bundles are released from the testis in the evening and are retained in the vas deferens lumen overnight before being ... in accumulation and secretion of several glycoproteins are co-ordinated with periodic retention of sperm in the vas deferens ... Secretory activity of the vas deferens epithelium is regulated by the circadian clock. Daily rhythms ... which time the release of sperm bundles from the testis to the upper vas deferens (UVD) and their subsequent transfer from the ...
From the epididymis, sperms move through Vas deferens. Later they enter into the urethra and expelled out of the body.. The ... Secretions of these glands are called semen. These secretion provide nutrients for the sperms and also provide the fluid medium ... This is called Vas efferentia and then into epididymis in which sperms are stored temporarily. ...
Spermatozoa and other secretions are extensively present in proximal portion of the vas deferens. But similar to the stage one ... the vas deferens in young males is connected to the distal, thin part of the testis. The distal portion of the vas deferens is ... these males still do not appear to contain any sort of secretions or spermatozoa in the distal portion of the vas deferens. ... This is in contrast to adults where spermatozoa are present in all regions of the vas deferens. Spermatogenesis for males of ...
Secretion and transport. Examples: trachea (cilia), parts of vas deferens (no cilia). epididymis (stereocilia) ... Mode of secretion. -Merocrine. -Regular secretion, protein synthd on -RERpackaged in golgisecretory vesicle fuse -with ...
... and had enlarged testes and vas deferens, it was deemed reproductively active. All other specimens were deemed reproductively ... Skin secretions. RP-HPLC. RP-HPLC revealed multiple peaks from the skin secretions of male and female animals, with a large ... The estimated MIC of the skin secretions was 75 µg ml−1 (Fig. 3A). Likewise, Bsal (no skin secretions, positive control) grew ... Antimicrobial skin secretions. Skin secretions collected from captive A. tridactylum exhibited antimicrobial activity against ...
... the pancreas and the vas deferens (Wilschanski and Durie, 1998). Aberrant CFTR-dependent HCO3− secretion is likely to ... Pancreatic ductal fluid secretion is coupled to Cl− absorption and HCO3− secretion. Both CFTR (Poulsen et al, 1994; Linsdell et ... Fluid secretion by the sealed ducts. Fluid secretion was measured by video microscopy as described before (Szalmay et al, 2001 ... Also unknown is the role of slc26a6 in fluid secretion.. Epithelial Cl− absorption and HCO3− secretion is intimately regulated ...
These ducts include the epididymis, vas deferens, ejaculatory duct and urethra. The reproductive glands produce secretions that ... The cauda epididymis continues to form less convoluted vas deferens. Ductus Deferens[edit]. The ductus (vas) deferens, also ... C) vas deferens. D) seminal vesicle. E) efferent ducts. 10. Joe has a bulge in the groin area that seems to get worse when he ... Vas deferens Muscular tubes connecting the left and right epididymis to the ejaculatory ducts to move sperm. Each tube is about ...
Having a target age for surgery reduces the risks of damaging the vas deferens. The vas deferens is in close proximity to the ... The problem either coincides with the secretion of AMH (PMDS Type I) or the receptor (PMDS Type II).[8] PMDS is usually ... During this surgery, the uterus is usually removed and attempts made to dissect away Müllerian tissue from the vas deferens and ... vas deferens and seminal vesicles. However, with PMDS individuals, the Mullerian Duct persists instead of regressing due to ...
Vas Deferens. thick, yellowish secretion thats rich in fructose, Vit C, nourish & sperm. Seminal Vesicles. ...
They travel upward into the body and enter the vas deferens. Here the seminal vesicles and prostate gland add their secretions ... lies under the bladder and surrounds the upper end of the urethra in the region where the vas deferens enters the urethra. ... male sterilization procedure in which a portion of the vas deferens is usually removed. prevents spermd from entering the ... it is formed by the union of the ductus deferens and the duct from the seminal vesicle, passes through the prostate gland and ...
The epididymis is the tube that transports sperm from the testicles to the vas deferens. ... These glands produce secretions that are high in a sugar called fructose, which provides nutrients to the sperm. ... Semen as a substance is a combination of secretions from the male reproductive glands as well as sperm. Changes and disruption ... Bulbourethral and urethral glands: These glands are responsible for producing secretions that make it easier for semen to ...
Non-ciliated pseudostratified columnar epithelia are located in the prostate and membranous part of male vas deferens. ... Pseudostratified epithelia function in secretion or absorption. If a specimen looks stratified but has cilia, then it is a ...
The testes are linked to the rest of the male reproductive organs by the vas deferens, which extends over the base of the ... Here, secretions from the seminal vesicle located next to the ampulla are added. ... Mature sperm begin their journey by travelling from the epididymis to the vas deferens, which propels sperm forward with smooth ...
This is called congenital bilateral absence of the vas deferens (CBAVD). This results from the thick secretions clogging the ... The secretions from the pancreas also become thick and can clog the ducts of the pancreas, causing a decrease in the secretion ... Congenital bilateral absence of the vas deferens (CBAVD) in males. This causes blockages of the sperm canal. ... vas deferens and keeping them from developing properly. It causes infertility because sperm cant travel out of the body. Women ...
This is called congenital bilateral absence of the vas deferens (CBAVD). This results from the thick secretions clogging the ... Congenital bilateral absence of the vas deferens (CBAVD) in males. This causes blockages of the sperm canal. ... This causes the normal thin secretions in the lungs to become very thick and hard to move. These thick secretions increase the ... The secretions from the pancreas also become thick and can clog the ducts of the pancreas. This may cause a decrease in the ...
During male seminal emission, sperm is transmitted from the vas deferens into the male urethra via the ejaculatory ducts, which ... Secretions[edit]. Prostatic secretions vary among species. They are generally composed of simple sugars and are often slightly ... "Chemical composition of human semen and of the secretions of the prostate and seminal vehicles". Am J Physiol. 136 (3): 467-473 ... The secretions also contain zinc with a concentration 500-1,000 times the concentration in blood. ...
... of quantal secretion from close-contact and loose-contact varicosities to the synaptic potentials in the vas deferens. ... Tomita, T. (1967). Current spread in the smooth muscle of the guinea-pig vas deferens. The Journal of Physiology, 189(1), 163- ... Holman, M.E., Taylor, G., Tomita, T. (1977). Some properties of the smooth muscle of mouse vas deferens. The Journal of ... and the time course of quantal transmitter action in rodent vas deferens. Neuroscience, 30 (3), 563-575.PubMedCrossRefGoogle ...
Two of the accessory glands are found in the general region where the vas deferens unite to become the urethra. Secretions from ... Vas deferens. The vas deferens, also known as ductus deferens, emerges from the tail of the epididymis as a straight tubule and ... The two vas deferens eventually unite into a single tube, the urethra, which is the channel passing through the penis. The ... Bulls may also be sterilized by a vasectomy in which a section of the vas deferens is removed so that sperm cannot pass to the ...
The duct that conveys sperm from the vas deferens and secretions from the seminal vesicle to the urethra. ... Synonym: ductus deferens; vas deferens; testicular duct. Stensen duct. See: Stensen, Niels. striated duct. Any of a class of ... one that conveys secretions from a gland. 2. A narrow enclosed channel containing a fluid, e.g., the semicircular duct of the ... efferent duct any duct which gives outlet to a glandular secretion.. ejaculatory duct the duct formed by union of the ductus ...
Adenosine stimulates anion secretion across cultured and native adult human vas deferens epithelia. Biol Reprod 68: 1027-1034, ... PVD9902, a porcine vas deferens epithelial cell line that exhibits neurotransmitter-stimulated anion secretion and expresses ... Pierucci-Alves F, Duncan CL, and Schultz BD. Testosterone upregulates anion secretion across porcine vas deferens epithelia in ... Oxytocin and vasopressin stimulate anion secretion by human and porcine vas deferens epithelia. Biol Reprod 77: 416-424, 2007. ...
Vas deferens Also called the ductus deferens, this region is strictly for transport of spermatozoa. ... However, the prostate gland secretion is a bit more basic than the seminal vesicle secretion. So it is even more effective at ... Ampulla This is just a widened area of the vas deferens. It has no additional function for the production of semen. ... The prostate gland secretion also has the effect of increasing spermatozoan motility. The prostate gland only secretes its ...
1996) Neuropeptide Y inhibits 3[H]noradrenaline release in the rat vas deferens independently of cAMP levels. Neurochem Int 28: ... 1984) Neuropeptide Y (NPY) depresses the secretion of 3H-noradrenaline and the contractile response evoked by field stimulation ... but can oppose NE-inducted contraction of the vas deferens by inhibiting NE release presynaptically (Lundberg and Stjarne, 1984 ...
In the epididymis the sperm are nourished and make their way to the vas deferens, which is a muscular tube connecting the ... Once inside the body, secretions from the prostate gland and seminal vesicles are added, producing the semen that is ejaculated ... Sperm only leave the epididymis during the process of ejaculation by ascending up the vas deferens before then mixing with ... When sperm are ejaculated they are pushed along the vas deferens by rhythmic contractions of the musculature. ...
... on stimulus-secretion coupling in the sympathetic nerves and on neuromuscular transmission in guinea-pig vas deferens STJARNE L ...
Plugging of the vas deferens in men with persistent 26492431] complement component. Especially in the reservoir with continuous ... Causes of acute lower extremity stasis dermatitis (see figure 10 3 patients from secretion of prognosis are often identifiable ... 432, drainage of secretions may be required in and obstruction. The primary outcome of patients with upper lobe veins, ...
Fluids are added by the seminal vesicles and the vas deferens turns into the ejaculatory ducts, which join the urethra inside ... The prostate as well as the bulbourethral glands add further secretions, and the semen is expelled through the penis. ... During ejaculation, sperm are propelled up the vas deferens, two ducts that pass over and behind the bladder. ... Females report that their vaginal secretions diminish as intercourse with a circumcised male progresses, and that circumcised ...
CONCLUSIONS: The normal organogenesis of the vas deferens, the presence of secretions filling the lumen of the deltaF508 +/+ ... Disease relevance of Vas Deferens. *Congenital bilateral absence of the vas deferens (CBAVD) is a form of male infertility in ... Gene context of Vas Deferens. *Is congenital bilateral absence of vas deferens a primary form of cystic fibrosis? Analyses of ... Analytical, diagnostic and therapeutic context of Vas Deferens. *In the mouse vas deferens bioassay, deltorphin II and cyclic[D ...
Further investigation on PDGFRα-positive ICs in the vas deferens may lead to understanding the vas deferens mortility. ... and ultrastructure of PDGFRα-positive ICs in murine vas deferens, using confocal laser scanning microscopy, transmission ... in intercellular signaling via direct contact with the IC network and the extracellular vesicles in the murine vas deferens. ... Peristalsis of the vas deferens transports sperm from the epididymis to the ampulla, from which the seminal vesicle secretions ...
... of Neurotransmitter Secretion from Individual Varicosities of the Sympathetic Nerves of the Guinea-Pig and Mouse Vas Deferens. ...
  • These ducts include the epididymis, vas deferens, ejaculatory duct and urethra. (wikibooks.org)
  • The reproductive glands produce secretions that become part of semen, the fluid that is ejaculated from the urethra. (wikibooks.org)
  • ejaculatory duct the duct formed by union of the ductus deferens and the duct of the seminal vesicles, opening into the prostatic urethra on the colliculus seminalis. (thefreedictionary.com)
  • Fluids are added by the seminal vesicles and the vas deferens turns into the ejaculatory ducts , which join the urethra inside the prostate gland. (wikipedia.org)
  • In the epididymis the sperm are nourished and make their way to the vas deferens, which is a muscular tube connecting the testis to the urethra up inside the male body. (thenakedscientists.com)
  • Emission of semen into the urethra depends on sympathetic nerves that elicit contractions of smooth muscles in the vas deferens, seminal vesicles, and prostate. (annals.org)
  • Peristalsis of the vas deferens transports sperm from the epididymis to the ampulla, from which the seminal vesicle secretions of the sperm are propelled forward through the ejaculatory ducts toward the urethra, using synchronized rhythmic contractions of the smooth muscle. (nature.com)
  • Once sperm cells are produced in the testis and accumulate in the epididymis, they rely on the ductus (vas) deferens and ejaculatory duct to propel them into the urethra and out of the penis during ejaculation. (medscape.com)
  • The ejaculatory duct delivers sperm into the urethra, adding secretions and additives from the prostate necessary for sperm function, while providing an interface between the reproductive and urinary systems in men (see image below). (medscape.com)
  • Seminal vesicle gland and prostate, vas deferens, urethra, bladder and so on are adjacent to each other. (selfgrowth.com)
  • During ejaculation, a thick-walled duct called the vas deferens carries the sperm cells from the epididymis to the urethra and then outside of the body or into the vagina by means of the penis. (verywellhealth.com)
  • During ejaculation (the ejection of sperm from the penis during orgasm), sperm travel from the epididymis through a long tube called the vas deferens to the urethra. (scienceclarified.com)
  • While the sperm travel between the epididymis, vas deferens, and the urethra it is combined with enzymes and secretions of the cowpers gland, prostate gland, and bulb cells to name a few. (steadyhealth.com)
  • From here, the sperm is deposited into the posterior urethra (water pipe), together with secretions from the seminal vesicles and prostate. (lua.co.uk)
  • The semen with all the sperm and secretions is then ejaculated through the rest of the urethra and out into the woman's body. (healthfully.com)
  • That Testicular tubules, epididymis and vas deferens transport the sperm cells into the prostatic tubule (i.e., between the internal and external sphincters) and the seminal vesicles (vesicula seminalis) and the prostate gland empty their respective secretions into this section of the urethra. (impodoc.de)
  • Secretions of these glands are called semen. (hubpages.com)
  • The secretions of skin glands contain a rich array of bioactive compounds including antimicrobial peptides (AMPs). (biologists.org)
  • Semen as a substance is a combination of secretions from the male reproductive glands as well as sperm. (medicalnewstoday.com)
  • These glands produce secretions that are high in a sugar called fructose, which provides nutrients to the sperm. (medicalnewstoday.com)
  • These glands are responsible for producing secretions that make it easier for semen to travel along the reproductive tract. (medicalnewstoday.com)
  • [4] Semen is made alkaline overall with the secretions from other contributing glands, including, at least, seminal vesicle fluid. (wikipedia.org)
  • The prostate as well as the bulbourethral glands add further secretions, and the semen is expelled through the penis. (wikipedia.org)
  • Parasympathetic nerves also stimulate secretion from the seminal vesicles and prostate and Cowper's glands during the plateau phase. (annals.org)
  • The ducts of seminal vesicle and prostrate glands add their secretions into the vas deferens. (topperlearning.com)
  • either of paired sac-like male exocrine glands that secrete a fluid into the vas deferens. (studystack.com)
  • secretion onto the lumen of the male excurrent duct and/or male accessory glands. (physiology.org)
  • The role of prostate glands comes into play when the sperms get mixed with secretions from the seminal vesicle. (performanceinsiders.com)
  • As the sperm cells travel through the vas deferens, three different glands release mucous secretions (called the seminal fluid) that combine with the sperm cells to create semen. (verywellhealth.com)
  • The first portion of seminal fluid (about 5%) consists of secretions from the Cowper's glands. (verywellhealth.com)
  • Secretions from three different glands mix with sperm before it is ejaculated, forming the seminal fluid, or semen. (scienceclarified.com)
  • Testes, vas deferens seminal vesicles, prostate, cowper s glands and penis are the male sex organs. (healthlibrary.com)
  • The Cowper's glands, or bulbourethral glands, also add secretions. (healthfully.com)
  • 25. In the united states problem study 1 (%)* study 3 (areds4) show that the body during the appropriate parts of the vas deferens, seminal glands (vesicles), whereas in type a intercalated cells. (iahf.com)
  • Seminal biochemistry (or biochemical study of sperm), in order to analyze various secretions (zinc, citrate, fructose, carnitine, acid phosphatases, etc.) contained in seminal plasma and originating from the different glands of the genital tract. (apsense.com)
  • The vas deferens, also known as ductus deferens, emerges from the tail of the epididymis as a straight tubule and passes as part of the spermatic cord through the inguinal ring into the body cavity. (missouri.edu)
  • mesonephric duct an embryonic duct of the mesonephros, which in the male becomes the epididymis, ductus deferens and its ampulla, seminal vesicles, and ejaculatory duct, and in the female is largely obliterated. (thefreedictionary.com)
  • Vas deferens Also called the 'ductus deferens,' this region is strictly for transport of spermatozoa. (illpumpyouup.com)
  • The ductus deferens, or vas deferens, is a fibromuscular tube that is continuation of the epididymis and is an excretory duct of the testis. (medscape.com)
  • [ 1 ] Extending from the globus minor, or tail of epididymis, the convoluted portion of the ductus deferens becomes straighter (diameter, 2-3 mm) as it ascends posterior to the testis and medial to the epididymis to join the other structures of the spermatic cord extending toward the inguinal canal. (medscape.com)
  • As the spermatic cord is formed at the deep (internal) abdominal ring, the ductus deferens curves lateral then medial to loop over the epigastric artery. (medscape.com)
  • The ductus deferens runs medial to the seminal vesicle and enlarges and terminates into a sacculated structure called the ampulla of the ductus. (medscape.com)
  • Each ductus deferens has an artery usually derived from the superior vesicle artery (artery to the ductus), with venous drainage to the pelvic venous plexus. (medscape.com)
  • Lymphatic drainage of the ductus deferens is to the external and internal iliac nodes and innervation is mainly sympathetic from the pelvic plexus. (medscape.com)
  • There are two ejaculatory ducts, left and right side, that are formed by the union of the duct from the seminal vesicle and the ductus (vas) deferens. (medscape.com)
  • [ 1 ] The vasculature, innervation and lymphatics of the ejaculatory ducts are the same as for the ductus deferens. (medscape.com)
  • Also referred to as the seminal vesicle-ejaculatory duct junction, the proximal portion of the ejaculatory duct is formed from the union of the seminal vesicle and the ampulla of the ductus deferens in the posterior-superior area of the prostate, as shown below. (medscape.com)
  • Though the junction is anatomically distinct, the duct is actually an extension of the seminal vesicle, whereas the ampulla of the ductus deferens enters the tubular structure at an angle. (medscape.com)
  • Once inside the body, secretions from the prostate gland and seminal vesicles are added, producing the semen that is ejaculated from the penis. (thenakedscientists.com)
  • In the prostate gland, secretions are added to the sperm which creates semen. (conehealth.com)
  • During ejaculation, semen is produced from a concentrated suspension of spermatozoa (~10%) stored in the paired epididymides, vas deferens and fluid secretions from the accessory sex organs (1). (thefreelibrary.com)
  • They move through the vas deferens and mix with secretions from the seminal vesicle and bulbourethral gland to form the semen. (arizona.edu)
  • Chronic inflammation of the seminal vesicle can cause infertility because 90% of the semen is the secretion of the seminal vesicle, which is the power source of sperm activity. (selfgrowth.com)
  • In the first phase, the vas deferens (the tubes that store and transport sperm from the testes) contract to squeeze the sperm toward the base of the penis and the prostate gland and seminal vesicles release secretions to make semen. (clevelandclinic.org)
  • The ends of the vas deferentia (plural of vas deferens) are known as ejaculatory ducts, and here, the sperm mixes with semen from the seminal vesicles. (healthfully.com)
  • induce clotting that occurs in semen Two ejaculatory duct is formed by the union of the vas deferens with the duct of the seminal vesicle. (slideserve.com)
  • The testes are linked to the rest of the male reproductive organs by the vas deferens, which extends over the base of the pelvic bone or ilium, and wraps around to the ampulla, seminal vesicle, and prostate. (medlineplus.gov)
  • There is a new lump on one of the testes, epididymis or vas deferens. (conehealth.com)
  • The sperms that are formed in the testes move through the vas deferens and it comes out via the epididymis. (performanceinsiders.com)
  • Penis and testes are visible, while the vas deferens seminal vesicles, prostate and cowper's gland lie inside the lower abdomen. (healthlibrary.com)
  • This a normal structure of the male reproductive system ( coiled tube that connect the testes to the vas deferens ), sperm goes through the epididymis. (healthtap.com)
  • The secondary sex organs are the epididymis, vas deferens and penis . (missouri.edu)
  • Check the vas deferens, which is next to the epididymis and carries sperm to the back of the penis. (conehealth.com)
  • It originates at the bladder, meets the vas deferens at the base of the penis, runs through the penis, and opens to the outside at end of the penis. (arizona.edu)
  • It is also believed that these secretions are designed to lubricate the penis and female tract during sexual intercourse. (howstuffworks.com)
  • After puberty (coming of age or beginning of the adolescence) a thick white pasty secretion is produced by the skin over the glans penis. (healthlibrary.com)
  • This is called congenital bilateral absence of the vas deferens (CBAVD). (choc.org)
  • This line of investigation is particularly important as we try to understand the causes of congenital bilateral absence of the vas deferens (CBAVD), a form of infertility that commonly affects cystic fibrosis patients. (k-state.edu)
  • However, there are now recognized non-classical presentations of CF involving a few organs only and now there is well established data on single -organ involvement including Congenital Absence of the Vas Deferens and recurrent pancreatitis. (clinicaltrials.gov)
  • 2 Another disorder, congenital bilateral absence of the vas deferens (CBAVD), is found in approximately 1% of infertile men and in a higher percentage of those presenting with azoospermia. (contemporaryobgyn.net)
  • The same concepts are useful for understanding congenital absence of the vas deferens. (contemporaryobgyn.net)
  • All men with CF have congenital absence of the vas deferens (CAVD)," Dr. Silber explained. (infertile.com)
  • Most males with CF have obstruction of the sperm canal known as congenital bilateral absence of the vas deferens (CBAVD). (nyhq.org)
  • Discovery of the CF gene and the ability to perform DNA diagnostics has allowed identification of mutations in CFTR (Fig. 1 ⇓ ), less severe at the functional level than the CF-related mutations, that are associated with specific abnormalities, such as congenital bilateral absence of the vas deferens (CBAVD). (aappublications.org)
  • A multitude of other symptoms, including sinus infections, poor growth, diarrhea, and potential infertility (mostly in males, due to the condition congenital bilateral absence of the vas deferens ) result from the effects of CF on other parts of the body. (newworldencyclopedia.org)
  • Thus, all men with Cystic Fibrosis have congenital absence of the vas deferens on both sides and are sterile. (infertile.com)
  • Congenital- The seminal tracts become altered from embryogenesis, resulting in an absence of the vas deferens. (apsense.com)
  • Reproductive systems of male moths contain circadian clocks, which time the release of sperm bundles from the testis to the upper vas deferens (UVD) and their subsequent transfer from the UVD to the seminal vesicles. (biomedcentral.com)
  • Sperm bundles are released from the testis in the evening and are retained in the vas deferens lumen overnight before being transferred to the seminal vesicles. (biomedcentral.com)
  • The first step, the release of sperm from the testis into the upper vas deferens (UVD), occurs in the evening. (biomedcentral.com)
  • 2006 ). The efferent ducts drain fluid and sperm from the rete testis and constitute the most proximal portion of the male excurrent duct, which is subsequently comprised by the epididymis and vas deferens. (physiology.org)
  • Upon maturation, spermatozoa are released into the rete testis, where they migrate to the epididymis and eventually to the vas deferens. (merckmanuals.com)
  • 33 ). SLC26A4 is expressed in kidney ( 29 ), the inner ear, thyroid ( 7 ), mammary gland ( 26 ), uterus ( 34 ), testis ( 16 ), vas deferens ( 3 ) and placenta ( 2 ). (pubmedcentralcanada.ca)
  • Epididymis is an elongated lump between testis and vas deferens , consists of a 15-20 feet long convoluted tubules for sperms to pass and mature (in10-12 days), and it usually hugs / attaches right onto the posterior aspect of testis. (healthtap.com)
  • Unexpectedly, deletion of slc26a6 in mice and measurement of fluid and HCO 3 − secretion into sealed intralobular pancreatic ducts revealed that deletion of slc26a6 enhanced spontaneous and decreased stimulated secretion. (wiley.com)
  • The secretions from the pancreas also become thick and can clog the ducts of the pancreas, causing a decrease in the secretion of pancreatic enzymes that normally help digest food. (choc.org)
  • The secretions from the pancreas also become thick and can clog the ducts of the pancreas. (ahealthyme.com)
  • During ejaculation, sperm are propelled up the vas deferens , two ducts that pass over and behind the bladder. (wikipedia.org)
  • In addition, no signs of increased mucus synthesis and/or secretion were present in the male excurrent ducts of these CF models. (bioone.org)
  • They both affect intrahepatic bile ducts by inspisated biliary secretions, chronic inflammation and fibrosis. (clinicaltrials.gov)
  • If CFTR is dysfunctional, secretions in pulmonary small airways and in the pancreatic ducts become tenacious and obstruct those structures, leading to respiratory and pancreatic complications. (contemporaryobgyn.net)
  • Men with CF are not sterile because they don't produce sperm, or because their sperm ducts are plugged up with secretions, as one might imagine. (infertile.com)
  • As a result of the abnormal electrolyte transport system in the cells, the secretions from the pancreas become thick and can lead to obstruction of the ducts of the pancreas. (nyhq.org)
  • The cause of CF is a defect in a single gene on chromosome 7 that encodes a cAMP-regulated chloride channel called the cystic fibrosis transmembrane conductance regulator (CFTR), which usually resides on the apical membrane of epithelial cells lining the airways, biliary tree, intestines, vas deferens, sweat ducts, and pancreatic ducts. (aappublications.org)
  • When the chloride ion cannot be transported by CFTR at these sites, fluid secretion is insufficient, and the protein portions of the secretions may become more viscid or precipitate and obstruct the ducts, leading to plugging and dysfunction at the organ level. (aappublications.org)
  • Vas deferens epithelial cells were isolated and electrophysiological results support that CFTR −/− monolayers can exhibit Na reabsorption but reveal no anion secretion following exposure to cAMP-generating compounds, suggesting that CFTR-dependent Cl − and/or HCO 3 − transport is completely impaired. (bioone.org)
  • In the present study, porcine vas deferens epithelial cells were isolated by standard techniques, and the cells spontaneously immortalized to form a porcine vas deferens epithelial cell line that we have titled PVD9902. (physiology.org)
  • Therefore, the vas deferens plays a crucial role in transporting sperm in the genital organs 2 , and understanding vas deferens motility is important to revealing the mechanism of sperm transport. (nature.com)
  • In the case of gastrointestinal tract motility, which is the same smooth muscle organs as vas deferens, interstitial cells of Cajal (ICC) act as pacemakers for peristaltic movement. (nature.com)
  • If the embryo has both an X and a Y chromosome and produces the two hormones, then the testosterone will stimulate the Wolffian duct to develop male sex organs, including the vas deferens and the seminal vesicles. (howstuffworks.com)
  • Males produce and store spermatophores as well as part of the seminal fluid in the anterior and median vas deferens. (brillonline.com)
  • Spermatophores are found in the anterior vas deferens (AVD) and median vas deferens (MVD) of all maturation stages but not in the posterior vas deferens (PVD), with a significantly smaller size in immature and maturing specimens. (brill.com)
  • Sokol, 2001 ) leads to destruction of the airway epithelia, the pancreas and the vas deferens ( Wilschanski and Durie, 1998 ). (wiley.com)
  • This may cause a decrease in the secretion of enzymes from the pancreas that normally help digest food. (ahealthyme.com)
  • This obstruction may cause a decrease in the secretion of enzymes from the pancreas that normally help to digest food. (nyhq.org)
  • Difficulty breathing and insufficient enzyme secretion in the pancreas are the most common symptoms that patients present with. (newworldencyclopedia.org)
  • The same gene that is required to allow these people to have normal lung and pancreas secretions is the gene that directs the formation in the developing fetus of the vas deferens. (infertile.com)
  • Here, secretions from the seminal vesicle located next to the ampulla are added. (medlineplus.gov)
  • Ampulla This is just a widened area of the vas deferens. (illpumpyouup.com)
  • If your patient is unable to get pregnant because her partner has cystic fibrosis or congenital bilateral absence of the vas deference, assisted reproductive technology offers a solution. (contemporaryobgyn.net)
  • Mutations in this gene are associated with the autosomal recessive disorders cystic fibrosis and congenital bilateral aplasia of the vas deferens. (merckmillipore.com)
  • Hormones- With hypogonadism (absence or abnormality of secretion of sex hormones) which may be congenital or acquired, due to pituitary tumors, which alter the functioning of the hypothalamic-pituitary axis or after a treatment for example chemotherapy. (apsense.com)
  • Indeed, initial studies revealed ion transport mechanisms in freshly isolated human vas deferens ( 11 ) and primary cultures of epithelial cells derived from distal portions of the human ( 11 ), porcine ( 12 , 36 , 41 ), and ovine ( 7 ) reproductive duct. (physiology.org)
  • Porcine vas deferens luminal pH is acutely increased by systemic xylazine administration. (k-state.edu)
  • The goal of this study was to test for expression of HCO 3 − exchangers SLC26A3 and SLC26A6 in primary cultures of porcine vas deferens epithelial cells (1°PVD) and native porcine vas deferens. (physiology.org)
  • LSCM also demonstrated SLC26A3 and SLC26A6 immunoreactivities present along the entire apical lining of the native porcine vas deferens epithelium and in basal cells. (physiology.org)
  • Our laboratory developed and employs a porcine vas deferens epithelial cell model to study transport mechanisms. (physiology.org)
  • The molecular identity of the Cl − /HCO 3 − exchangers and their relationship with CFTR in determining fluid and HCO 3 − secretion are not known. (wiley.com)
  • We show here that the Cl − /HCO 3 − exchanger slc26a6 controls CFTR activity and ductal fluid and HCO 3 − secretion. (wiley.com)
  • These findings reveal the intricate regulation of CFTR activity by slc26a6 in both the resting and stimulated states and the essential role of slc26a6 in pancreatic HCO 3 − secretion in vivo . (wiley.com)
  • Tracts from CFTR −/− and CFTR ΔF508/ΔF508 neonates revealed partial or total vas deferens and/or epididymis atresia at birth, while wild-type littermates were normal. (bioone.org)
  • CFTR is expressed in the bile duct epithelial cells and is responsible for the hydration of biliary secretions. (clinicaltrials.gov)
  • Mature sperm begin their journey by travelling from the epididymis to the vas deferens, which propels sperm forward with smooth muscle contractions. (medlineplus.gov)
  • When sperm are ejaculated they are pushed along the vas deferens by rhythmic contractions of the musculature. (thenakedscientists.com)
  • Endothelins stimulate the contraction in almost all other smooth muscles (e.g., uterus, bronchus, vas deferens, stomach) and stimulate secretion in several tissues e.g., kidney, liver and adrenals [ PMID: 16340664 , PMID: 8480469 , PMID: 8466176 ]. (ebi.ac.uk)
  • a passage with well-defined walls, especially a tubular structure for the passage of excretions or secretions. (thefreedictionary.com)
  • The seminal vesicles arise as tortuous diverticula of the vas deferens and therefore present histologically as multiple sections through a tubular structure. (anatomyatlases.org)
  • Secretions from the seminal vesicles add fructose and prostaglandins to sperm as they pass. (coursehero.com)
  • The secretion produced by the Seminal Vesicles also contains a variety of nutrients, such as fructose (fruit sugar), that provides the sperm cells an energy source. (healthandyoga.com)
  • During sexual intercourse, smooth muscles contract and propel mature sperm from the end portions of the epididymis through a long tube called the vas deferens , which is inside the body, just beneath the bladder. (howstuffworks.com)
  • During ejaculation, the sperm are pushed up the vas deferens, a tube which loops around the bladder. (healthfully.com)
  • Fluid and HCO 3 − secretion are vital functions of the pancreatic duct and other secretory epithelia. (wiley.com)
  • Pseudostratified epithelia function in secretion or absorption. (wikipedia.org)
  • Non-ciliated pseudostratified columnar epithelia are located in the prostate and membranous part of male vas deferens. (wikipedia.org)
  • There is no evidence of preferential expression of SLC26A3 or SLC26A6 in any portion of the vas deferens, as has been proposed for epithelia that secrete HCO 3 − in other duct systems. (physiology.org)
  • Thus, vas deferens epithelia express transporters throughout the duct that can contribute to rapid alkalinization of the luminal contents as it has been demonstrated in vivo . (physiology.org)
  • This results from the thick secretions clogging the vas deferens and keeping them from developing properly. (choc.org)
  • This causes the normal thin secretions in the lungs to become very thick and hard to move. (ahealthyme.com)
  • These thick secretions increase the risk for frequent respiratory infections. (ahealthyme.com)
  • These thick secretions put the child with CF at risk for frequent respiratory infections. (nyhq.org)
  • This results from the abnormal electrolyte transport system in the cells, causing the secretions to become thick and may lead to obstruction and even infertility. (nyhq.org)
  • The major part of the seminal fluid is produced and stored in the posterior vas deferens. (brillonline.com)
  • The vas deferens is divided into anterior (AVD), middle (MVD), and posterior (PVD). (brillonline.com)
  • Ion transport mechanisms in the vas deferens, which constitutes the majority of the remaining ductal system, remain largely undefined, although histological evidence suggests that this portion of the duct also has an absorptive or secretory function ( 26 , 40 ). (physiology.org)
  • A comprehensive understanding of the ion transport mechanisms in the vas deferens is required to recognize the contribution of this ductal segment to male fertility. (physiology.org)
  • Most lumps are non-cancerous but be sure to tell your doctor right away if you feel a change in your testicle, epididymis or vas deferens. (conehealth.com)
  • It's role in different parts of the body are different, but regardless, it plays a crucial part in regulating the secretion or absorption of chloride ions into the lumen. (newworldencyclopedia.org)
  • efferent duct any duct that gives outlet to a glandular secretion. (thefreedictionary.com)
  • The glandular secretion is glycoproteinaceous in P. transversus and rich in acidic and neutral polysaccharides in P. gracilis. (brillonline.com)
  • In the case of Secretory azoospermia of hormonal origin, following alteration of the hypothalamic-pituitary axis (hypogonadotropic hypogonadism), hormonal treatment for azoospermia may be proposed to restore the hormonal secretions which are necessary for spermatogenesis. (apsense.com)
  • The packeted release of transmitter from the sympathetic nerves of the guinea-pig vas deferens: an electrophysiological study. (springer.com)
  • Secretory activity of the vas deferens epithelium is regulated by the circadian clock. (biomedcentral.com)
  • 2,3 In a study of testicular biopsies in various causes of male infertility it was found that regardless of the cause, obstruction of the vas deferens or epididymis per se has no adverse effect on the germinal epithelium or Leydig cells. (ispub.com)
  • excretory duct one through which the secretion is conveyed from a gland. (thefreedictionary.com)
  • This is connected to a longer tube called the vas deferens, which lead to the prostate gland. (conehealth.com)
  • From there, the sperm get mixed with nutrient-rich fluids from the seminal vesicles and a milky secretion from the prostate gland. (howstuffworks.com)
  • In the event of obstruction of the ways, these secretions can be disturbed and the biochemical analysis can help to locate the level of the obstacle. (apsense.com)
  • Daily rhythms in accumulation and secretion of several glycoproteins are co-ordinated with periodic retention of sperm in the vas deferens lumen. (biomedcentral.com)
  • As they travel through the male reproductive system, other secretions are added to the spermatozoa-containing solution. (illpumpyouup.com)
  • Sperm only leave the epididymis during the process of ejaculation by ascending up the vas deferens before then mixing with seminal fluid released from the seminal vesicles. (thenakedscientists.com)
  • The vas deferens plays an important role in male ejaculation, during which the smooth muscle in the wall contract reflexively, propelling the sperm forward. (nature.com)
  • We found that compounds within collected skin secretions were similar between male and female salamanders and inhibited the growth of Bd and Bsal. (biologists.org)
  • Approximately by the end of the 7th and beginning of the 8th week of gestation, the Sertoli cell's secretion of AMH occur, causing the male sex differentiation during foetal development. (wikipedia.org)
  • The Leydig cells secrete testosterone to aid male differentiation process by inducing structures such as the epididymis, vas deferens and seminal vesicles. (wikipedia.org)
  • The epididymis is the tube that transports sperm from the testicles to the vas deferens. (medicalnewstoday.com)
  • The epididymis also acts as a storage area for sperm and transports the sperm to the vas deferens. (lua.co.uk)