Duct epididymis. Medical search. Frequent questions

After they leave the testes, the sperm passes through the epididymis , ductus deferens , ejaculatory duct , and urethra . (cancer.gov)
The ductus deferens, also called vas deferens , is a fibromuscular tube that is continuous ( or contiguous ) with the epididymis. (cancer.gov)
Sperm are stored in the proximal portion of the ductus deferens, near the epididymis, and peristaltic movements propel the sperm through the tube. (cancer.gov)
Each ductus deferens, at the ampulla , joins the duct from the adjacent seminal vesicle (one of the accessory glands) to form a short ejaculatory duct. (cancer.gov)
In mammals this is from the seminiferous tubules through rete testis, vas efferentia, epididymis, vas deferens, ejeculatory duct to the urethra. (mcw.edu)
Last is the tail, which connects to the deferent duct, also referred to as the ductus deferens or vas deferens. (healthline.com)
The mesonephric duct gives rise to the male seminal vesicles, epididymises and vas deferens. (wikipedia.org)
In the male the duct persists, and forms the tube of the epididymis, the vas deferens and the ejaculatory duct, while the seminal vesicle arises during the third month as a lateral diverticulum from its hinder end. (wikipedia.org)
Wolffian ducts differentiate into the vas deferens, epididymis, and seminal vesicles. (medscape.com)
The vas deferens is the duct that transports sperm from the epididymis to the ejaculatory ducts before ejaculation. (medicalnewstoday.com)
To do this, the left and right ductus deferens connect each side of the epididymis to the body's ejaculatory ducts. (healthline.com)
The lower ends of the two vesicles are pointed and converge at the base of the prostate, where each joins with the corresponding vas deferens to form the ejaculatory duct. (visiblebody.com)
The vas deferens, or the ductus deferens , is the excretory duct of the testis. (visiblebody.com)
Ducts penetrate penile fascia covering the testis and carry seminal fluid from the testis up to the epididymis, and from there the fluid enters the vas deferens. (visiblebody.com)
Post-vasectomy discomfort syndrome may be caused by increased pressure in the vas deferens (tubes delivering sperm) or epididymis. (pregnancyvitamins.net)
Accordingly, Müllerian ducts form the uterus and fallopian tubes in females and Wolffian ducts form the epididymis, vas deferens, and ejaculatory duct in males. (benthamscience.com)
The vas deferens is a long, muscular tube that carries sperm from the epididymis into the urethra, which is located inside the penis. (ivfspecialists.com)
Duct system , which includes the epididymis and vas deferens through which the sperm-containing fluid semen travels. (michaelshealth.com)
Mature sperm begin their journey by travelling from the epididymis to the vas deferens, which propels sperm forward with smooth muscle contractions. (medlineplus.gov)
Accessory ducts: Epididymis, vas deferens, urethra. (biopassionate.net)
Noticeable swelling of the highly convoluted duct (epididymis) behind the testicle (testis) along which sperm passes to the vas deferens. (willyworries.com)
The mesonephric duct ultimately forms the epididymis, ductus deferens, seminal vesicles, and ejaculatory ducts by way of the mesonephric ductal system. (medscape.com)
Initially, the epididymis and ductus deferens form from the mesonephric duct. (medscape.com)

Each ejaculatory duct passes through the prostate gland and empties into the urethra. (cancer.gov)
It receives the ejaculatory duct, which contains sperm and secretions from the seminal vesicles , and numerous ducts from the prostate glands. (cancer.gov)
From here, the sperm is transported to the ejaculatory duct. (healthline.com)
Eventually, it is directed downward to the base of the prostate, where it joins the base of the seminal vesicle to form the ejaculatory duct. (visiblebody.com)

The ducts from the bulbourethral glands open into the penile urethra. (cancer.gov)
In the male the paramesonephric ducts atrophy (but traces of their anterior ends are represented by the appendix of testis of the male), while their terminal fused portions form the prostatic utricle in the floor of the prostatic urethra. (wikipedia.org)
Its glandular tissue consists of numerous glands that open into 12 to 20 small excretory ducts, which open into the floor of the prostatic portion of the urethra. (visiblebody.com)
In the male system, urine and ejaculate exit the same duct, the urethra, while in the female system they have their own distinctive exits. (visiblebody.com)
The openings to the urethra are called the ejaculatory ducts. (ivfspecialists.com)
Next, the seminal fluid is propelled forward through the ejaculatory ducts toward the urethra. (medlineplus.gov)

Sperm leave the testes through a series of efferent ducts that enter the epididymis. (cancer.gov)
Each epididymis is a long (about 6 meters) tube that is tightly coiled to form a comma-shaped organ located along the superior and posterior margins of the testes. (cancer.gov)
It begins at the bottom (tail) of the epididymis then turns sharply upward along the posterior margin of the testes. (cancer.gov)
The epididymis is a long, coiled tube that stores sperm and transports it from the testes. (healthline.com)
Although it bears some superficial resemblance to the testes, the epididymis differs in that it is smaller, and the tubes are larger and less densely packed. (healthline.com)
The testes are ovoid (10 cm - 14 cm × 6 cm - 8 cm without the epididymis) and suspended into the scrotum with a vertical long axis. (scielo.org.za)
Anti-Mullerian hormone (Mullerian inhibiting substance) causes regression of the paramesonephric duct (Mullerian duct, which forms the female internal genitalia in XX animals), although testosterone drives the development of the male tubular tract, accessory glands and external genitalia, and together with insulin-like factor 3 (INSL3) the descent of the testes. (scielo.org.za)
Developmentally, when the testes begin to form during the seventh week of life, the mesonephric (Wolffian) duct differentiates into the male genital system. (medscape.com)

This structure is derived from the Wolffian duct (Mesonephric Duct) as opposed to the appendix testis which is derived from the Müllerian duct (Paramesonephric Duct) remnant. (wikipedia.org)
These embryonic structures are the mesonephric ducts (also known as Wolffian ducts) and the paramesonephric ducts, (also known as Müllerian ducts). (wikipedia.org)
In the female fetus, without the influence of AMH, the müllerian ducts complete their differentiation, whereas the wolffian structures involute. (medscape.com)
Wolffian duct structures tend to be observed on the gonadal side containing functioning testicular tissue. (medscape.com)

The appendix of the epididymis (or pedunculated hydatid) is a small stalked appendage (sometimes duplicated) on the head of the epididymis. (wikipedia.org)
Near the top of the testis is the head of the epididymis, which stores sperm until it is ready to undergo maturation. (healthline.com)
while the posterior tubules are represented by the ductuli aberrantes, and by the paradidymis, which is sometimes found in front of the spermatic cord above the head of the epididymis. (wikipedia.org)

Partially surrounding and separating the epididymis from the testis is a thin sheet of tissue referred to as the tunica vaginalis. (healthline.com)
The epididymis is a duct that attaches to the testis, consisting of a central portion, a head, and a pointed extremity (tail). (visiblebody.com)
The right testis was situated more cranially than the left and connected to a longer deferent duct with normal ampullae. (scielo.org.za)
Males can also get infection of the epididymis [a duct behind the testis], causing testicular pain and tenderness, or prostate infection causing painful urination, painful ejaculation, and pelvic pain," Woollens said. (health.mil)
In the marmoset, the efferent ducts, but not the rete testis, also showed intense immunoexpression of ERa. (endocrinology-journals.org)
Interactive effects, related to the relative levels of androgens and oestrogens, could be physiologically important in the excurrent ducts of the adult testis. (endocrinology-journals.org)

The mesonephric duct originates from a part of the pronephric duct. (wikipedia.org)
beyond the pronephros it is termed the mesonephric duct. (wikipedia.org)
Thus, the mesonephric duct remains after the atrophy of the pronephros duct. (wikipedia.org)
The lower part of the mesonephric duct disappears, while the upper part persists as the longitudinal duct of the epoöphoron, called Gartner's duct. (wikipedia.org)
There are also developments of other tissues from the mesonephric duct that persist, e.g. the development of the suspensory ligament of the ovary. (wikipedia.org)
Each arises on the lateral aspect of the corresponding mesonephric duct as a tubular invagination of the cells lining the abdominal cavity. (wikipedia.org)

Possible XY, SRY+ testicular DSDs include hypospadias, cryptorchidism, testicular agenesis and hypoplasia, segmental aplasia of the epididymis, deferent ducts and penile hypoplasia (Lyle 2007). (scielo.org.za)
Müllerian duct structures typically develop on the gonadal side not containing testicular tissue. (medscape.com)

When fluid accumulates in the epididymis around the testicle, it's known as a spermatocele. (pregnancyvitamins.net)
Blockages of the epididymis - that part of the testicle which contains the sperm - or blockages in the ejaculatory ducts will prohibit the flow of semen into the vagina. (gettingpregnant.co.uk)
Along the top of each testicle is the epididymis. (medlineplus.gov)

Epididymitis is an infection of the epididymis, which is the organ where sperm matures before exiting the body. (medicalnewstoday.com)

The paramesonephric duct gives rise to the female fallopian tubes, uterus, cervix, and upper part of the vagina. (wikipedia.org)
Müllerian ducts develop into the fallopian tubes, uterus, and upper one third of the vagina. (medscape.com)

these are the paramesonephric ducts. (wikipedia.org)
At a later stage the sinus tubercle opens in the middle, connecting the paramesonephric ducts with the cloaca. (wikipedia.org)
In the female the paramesonephric ducts persist and undergo further development. (wikipedia.org)
This fusion of the paramesonephric ducts begins in the third month, and the septum formed by their fused medial walls disappears from below upward. (wikipedia.org)
1] Cystic masses of the seminal vesicles may also be felt on palpation and are typically embryologic remnants of the paramesonephric ducts. (medscape.com)

the epididymis tubules contained no spermatozoa and the deferent duct and vesicular gland were inflamed. (scielo.org.za)
Anterior aspect of the seminal vesicles, terminal parts of the deferent ducts, and the prostate. (medscape.com)

Accessory glands , which include the prostate gland that makes some parts of semen and the seminal vesicles that provide help lubricate the duct system and protect sperm. (michaelshealth.com)
Note that each teat has two orifices and teat ducts which drain two quite separate mammary glands, front (anterior) and back (posterior). (orielladigitaljournalism.com)

It is usually regarded as a detached efferent duct. (wikipedia.org)

Sperm cells pass through a series of ducts to reach the outside of the body. (cancer.gov)
A duct or series of ducts that transports sperm from the gonad. (mcw.edu)

Alkaline phosphatase (AP) in canine seminal plasma arises predominantly from the cauda epididymis, making it a useful epididymal marker when evaluating azoospermia. (vin.com)
Apart from sporadic immunostaining for ERa in the epididymal duct of the rat in the neonatal period, the caput, corpus and cauda epididymis were negative for immunoexpression of ERa at all ages in both species. (endocrinology-journals.org)

Spermatoceles, small cysts possibly formed from blocked sperm ducts, are treated in the same way. (spirehealthcare.com)

Along this route, the genital ducts and accessory glandular structures produce mucous secretions that combine with the spermatozoa to create semen. (medscape.com)

Epididymal cysts are benign swellings in the epididymis (the sperm-collecting tubes around the top of men's testicles), which can be surgically removed if they are causing pain. (spirehealthcare.com)

Squamous metaplasia is usually the result of chronic irritation, but it can have other causes (e.g., hypovitamnosis A). In the salivary ducts, metaplasia of the normally cuboidal ductal epithelium to stratified squamous epithelium has been seen in response to chemicals, ionizing radiation, viral infections, vitamin A deficiency, and blockage of ducts by salivary calculi. (nih.gov)
Squamous metaplasia of the salivary duct should be diagnosed and graded based on the number of areas involved and the thickness of the squamous epithelium. (nih.gov)
Salivary gland, Duct - Metaplasia, Squamous in a male F344/N rat from a chronic study. (nih.gov)

The ducts pass backward lateral to the mesonephric ducts, but toward the posterior end of the embryo they cross to the medial side of these ducts, and thus come to lie side by side between and behind the latter-the four ducts forming what is termed the common genital cord[citation needed], to distinguish it from the genital cords of the germinal epithelium[citation needed] seen later in this article. (wikipedia.org)
The duct lies between the peritoneal membrane and the lateral wall of the pelvis. (visiblebody.com)
The short ducts of the seminal vesicles join the lateral aspects of the ductus deferentes at an acute angle, creating the ejaculatory ducts at the base of the prostate gland. (medscape.com)

The mesonephric ducts end in an epithelial elevation, the sinus tubercle, on the ventral part of the cloaca between the orifices of the mesonephric ducts. (wikipedia.org)

Fertilization ability is acquired during spermatozoa transit through the epididymis [ 1 , 2 ]. (oncotarget.com)
Spermatogenesis ends with spermiation, when spermatozoa are released into the epididymis in a single event in late October [ 11 ]. (oncotarget.com)
Immature spermatozoa are transferred into the epididymis and stored until the following reproductive season (from May to October) [ 12 ]. (oncotarget.com)
When spermatozoa migrate to the epididymis, chromatin in the sperm head condenses and the process of transcription and translation arrests. (oncotarget.com)

The reproductive systems of mammalian males contain a component called the epididymis. (microscopyu.com)

Internal duct development usually corresponds to the adjacent gonad. (medscape.com)

Inflammation of the epididymis is the cause of epididymitis. (pregnancyvitamins.net)

Mature sperm are stored in the lower portion, or tail, of the epididymis. (cancer.gov)

The walls of the epididymis are lined in pseudostratified columnar epithelial tissue, meaning that the arrangement of the cells gives the appearance of two layers, although it is only one. (healthline.com)

These findings suggest that the main actions of oestrogens in the male reproductive tract, mediated by ERa, are related to the development and function of the efferent ducts and the Leydig cells. (endocrinology-journals.org)

In the outer part of the intermediate mesoderm, immediately under the ectoderm, in the region from the fifth cervical segment to the third thoracic segment, a series of short evaginations from each segment grows dorsally and extends caudally, fusing successively from before backward to form the pronephric duct. (wikipedia.org)
The vesicles are blind pouches and are rounded on their most superior aspects and taper to their inferior aspects, where they constrict to ultimately form short ducts. (medscape.com)

sperm travels via the epididymis, a bundle of thin tubes, from the testicles to the sperm duct. (pregnancyvitamins.net)

Anatomy39

Organisms4

Diseases13

Chemicals and Drugs18

Analytical, Diagnostic and Therapeutic Techniques and Equipment14

Phenomena and Processes10

Disciplines and Occupations1

Deferens23

Ejaculatory duct4

Urethra6

Testes8

Wolffian4

Head of the epididymis3

Testis6

Mesonephric Duct6

Testicular2

Testicle3

Infection of the epididymis1

Fallopian2

Paramesonephric5

Deferent2

Glands2

Efferent duct1

Series of ducts2

Cauda epididymis2

Sperm ducts1

Secretions1

Epididymal1

Squamous3

Lateral3

Orifices1

Spermatozoa4

Males1

Gonad1

Epididymitis1

Mature1

Epithelial1

Male1

Form2

Travels1