• The oviduct in mammals, is the passageway from an ovary. (wikipedia.org)
  • Normally, these are paired structures, but in birds and some cartilaginous fishes, one or the other side fails to develop (together with the corresponding ovary), and only one functional oviduct can be found. (wikipedia.org)
  • Except in teleosts, the oviduct is not directly in contact with the ovary. (wikipedia.org)
  • The ovary itself is hollow, with eggs being shed into the central cavity, and thence passing directly into the oviduct. (wikipedia.org)
  • Oviduct atrophy is an uncommon lesion and would be expected to occur in association with atrophy of the ovary and uterus or with inflammation. (nih.gov)
  • females were similar in liver and ovary mass across all elevations, but formed heavier fat bodies, oviducts and somatic tissue at higher elevation sites. (usgs.gov)
  • The lean dry weight and lipid of the pectoral muscle, ovary, oviduct and total carcass was measured, together with the dry weight of the leg muscles, heart, liver, gut and gizzard. (gla.ac.uk)
  • This study will provide a comprehensive assessment of the toxic effects of the estrogenic pesticide methoxychlor (MXC) on specific segments of the reproductive tract: the ovary, uterus and the oviduct. (cdc.gov)
  • The lower portion of the oviduct, or uterus, has a thicker layer of smooth muscle and contains the glands that secrete the egg shell. (wikipedia.org)
  • In mammals, the portion of the oviduct above the uterus is referred to as the fallopian tube. (wikipedia.org)
  • The female reproductive system consists of the ovaries connected by uterine tubes (oviducts) to the uterus, cervix, vagina, and clitoris. (cdc.gov)
  • The Fallopian tubes , also known as oviducts , uterine tubes , and salpinges ( singular salpinx ) are two very fine tubes leading from the ovaries of female mammals into the uterus . (wikidoc.org)
  • one pair (the Müllerian ducts ) develops in females into the Fallopian tubes, uterus and vagina , while the other pair (the Wolffian ducts ) develops in males into the epididymis and vas deferens. (wikidoc.org)
  • When a young woman reaches puberty around age 10 to 13, a promary oocyte is discharged from one of the ovaries every 28 days. (wikibooks.org)
  • In contrast, females put more energy into their ovaries and oviducts. (usgs.gov)
  • It could also be signaling to the ovaries to ovulate and to the oviduct to potentially prepare for sperm storage," she added. (motherjones.com)
  • The ovaries and oviduct of females also increase in size in preparation for egg fertilization and development. (nestwatch.org)
  • Pelvic inflammatory disease (PID) is an acute, subacute, recurrent, or chronic infection of the oviducts and ovaries, with adjacent tissue involvement. (health-disease.org)
  • Fry and Toone, 1981) Louis Guillette noticed that male alligators from Lake Apopka in Florida have vestigial penis, follicle-like testis and elevated estrogens/testosterone ratios and the female hatchings ovaries were producing multiple egg follicles and eggs with several nuclei (Luoma, 1995, Guillette et al. (benjaminbarber.org)
  • Production of the viral particles, however, is confined to females and occurs only in ovaries. (esc-sec.ca)
  • The vagina is a soft, stretchable tube of muscle tissue about 4 to 5 inches long in an adult woman. (msdmanuals.com)
  • The eggs travel along the oviduct. (wikipedia.org)
  • In reptiles, birds, and monotremes, the main part of the oviduct is a muscular tube, capable of considerable distension to transport the large eggs that are produced. (wikipedia.org)
  • After copulation, where sperm from the male is transferred to the female's oviducts, the female's eggs become fertilized. (insecta-inspecta.com)
  • The fertilized eggs then develop within the protective environment of the oviducts until they are ready to be laid. (insecta-inspecta.com)
  • So it looks like we have indirect evidence for keeping two eggs in two oviducts,' Kundrát told LiveScience. (go.com)
  • Typically, the male reproductive system produces sperm, and the female reproductive system produces eggs. (cdc.gov)
  • It spends most of its life in saltwater and estuarine habitats, with females briefly coming ashore to lay eggs. (wikipedia.org)
  • females lay an average of four egg clutches and then become quiescent , producing no eggs for two to three years. (wikipedia.org)
  • Once the female's oviduct is filled with sperm, she is able to lay eggs that were internally fertilised. (scientificamerican.com)
  • If the eggs were laid into a watery environment, this would demonstrate that the gravid females were laying eggs under abnormal, highly stressed conditions which might be typical of the Noahic Flood. (creationresearch.org)
  • The total number of eggs that a female can lay in one nesting attempt varies widely depending on the species. (nestwatch.org)
  • In most species, the male uses a specially adapted arm to deliver a bundle of sperm directly into the female's mantle cavity, after which he becomes senescent and dies, while the female deposits fertilised eggs in a den and cares for them until they hatch, after which she also dies. (wikipedia.org)
  • My last question is would the male be exhibiting this behavior if the female did not have ripe eggs, or does he only do it when they are close to breeding? (seahorse.com)
  • Your ponies are ready for the exchange of eggs, which takes place when the couple rise together and the female transfers her eggs to the pouch of the male, but this is a very complex, tricky maneuver to pull off successfully, and it often takes inexperienced couples many false starts and botched mating attempts before they finally get everything right. (seahorse.com)
  • However, once he delivers his brood of young, the female will have a new clutch of eggs ready for him, and they will often re-mate that very same day. (seahorse.com)
  • In the area where the eggs were collected, there was multiple female-female pairing and low hatchability of eggs. (benjaminbarber.org)
  • oviparity (egg-laying) or viviparity (eggs not laid: the female gives birth to larvae or juveniles). (froglife.org)
  • eggs are deposited into the environment or they develop in or on the body of either the female or the male parent. (froglife.org)
  • For example, so-called trophic eggs, unfertilised eggs deposited by females to feed their hatched larvae. (froglife.org)
  • The aims of this study were to measure the relative contributions of exogenous and endogenous nutrients to the formation of eggs by captive female Zebra Finches and to investigate the transfer of material from the body reserves to the developing eggs. (gla.ac.uk)
  • Body reserves of protein decline by an amount equivalent to 74.6% of the total reproductive requirement (eggs plus oviduct). (gla.ac.uk)
  • In the case of consort males, who left spermatophores inside the female's body, their sperm springs into action as soon as the female's eggs start oozing out of her oviducts. (science20.com)
  • The primary function of gonopods is to transfer sperm to the female during the mating process. (insecta-inspecta.com)
  • In the human reproductive process, two kinds of sex cells ( gametes), are involved: the male gamete (sperm), and the female gamete (egg or ovum). (wikibooks.org)
  • The female body combines the sperm and egg to form a single cell (zygote), and forms a nurturing environment for the offspring to develop. (cdc.gov)
  • Besides the clasping component of this organ, there is also what's known as the papillary component, which is responsible for transferring sperm bundles into the female. (scientificamerican.com)
  • They mimic the action of female hormones that control the swimming behavior of the sperm in the oviduct. (innovations-report.com)
  • The researchers found that also the female hormones have a synergistic action in sperm. (innovations-report.com)
  • During copulation, the male's cloaca contacts and ejects sperm into the cloaca of the female. (nestwatch.org)
  • The sperm travel to the oviduct where they can be stored for long periods. (nestwatch.org)
  • That's because squids (and octopuses and all other cephalopods) package their sperm up before passing it from male to female. (science20.com)
  • In human females this is more usually known as the fallopian tube or uterine tube. (wikipedia.org)
  • The fallopian tube is also called the oviduct. (histology-world.com)
  • During development, secretions from the oviduct walls nourish the embryos. (aquariumofpacific.org)
  • Cells in the oviduct walls are stimulated by the embryos using specialized fetal teeth to produce the secretions. (aquariumofpacific.org)
  • Where the sexes differ in this species is that while the females have very rudimentary pelvic fins, which branch out from the throat area, the males have none, this area occupied instead by the priapium. (scientificamerican.com)
  • Pelvic Inflammatory Disease is defined as the acute or chronic inflammation of the female reproductive organs. (health-disease.org)
  • Women with cystoceles or rectoceles may feel a protruding bulge, pelvic pressure or have difficulty with urination or defecation. (medlineplus.gov)
  • Pelvic Examination For gynecologic care, a woman should choose a health care practitioner with whom she can comfortably discuss sensitive topics, such as sex, birth control, pregnancy, and problems related to. (msdmanuals.com)
  • In amphibians and lungfishes, the oviduct is a simple ciliated tube, lined with mucus-secreting glands that produce the jelly that surrounds the ovum. (wikipedia.org)
  • This part of the oviduct is lined with glands that secrete the components of the egg white. (wikipedia.org)
  • Bartholin's glands are found in females and are homologous to the bulbourethral glands in males. (histology-world.com)
  • Skene's glands are also called the lesser vestibular glands and are found in females. (histology-world.com)
  • The scientists, all of whom are women, say previous research had mistaken the organs as scent glands or underdeveloped versions of penises, in a study that criticized the comparatively limited research into female sex organs. (motherjones.com)
  • Offspring were obtained from two-cell embryos transferred into females with pseudopregnancy induced using sonic vibration in proestrus on the day before embryo transfer. (nature.com)
  • Furthermore, high developmental rates of offspring were observed when pronuclear and two-cell embryos were transferred to females in estrus that were stimulated on the day of embryo transfer. (nature.com)
  • Genome-edited mice were also obtained using frozen-warmed pronuclear embryos with clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated system (Cas) nucleases introduced using the technique for animal knockout system by electroporation (TAKE) method, which were transferred to females with pseudopregnancy induced on the day of embryo transfer. (nature.com)
  • Embryo development using artificially stimulated females was significantly lower than that of the control group in which pseudopregnancy was induced in females by mating with vasectomized males. (nature.com)
  • In this study, estrus females were stimulated on the day of embryo transfer. (nature.com)
  • If no male instructions are forthcoming, the pea-sized embryo generates female organs, ignoring the child's genetic blueprint for male (XY) or female (XX). (oneradionetwork.com)
  • The USPSTF recommends that ( Grade B) 1)primary care providers screen women who have family members with breast, ovarian, tubal or peritoneal cancer with one of several screening tools designed to identify if family history may be associated with an increased risk for potentially harmful mutations in breast cancer susceptibility genes (BRCA1 or BRCA2). (southcarolinablues.com)
  • This chapter describes the different parts of the female reproductive system: the organs involved in the process of reproduction, hormones that regulate a woman's body, the menstrual cycle, ovulation and pregnancy, the female's role in genetic division, birth control, sexually transmitted diseases and other diseases and disorders. (wikibooks.org)
  • We collected oocytes matured in vivo at metaphase II about 72 hours after ovulation by flushing the oviducts. (nature.com)
  • Ovulation and laying take about 24 hours, so female birds typically produce at most one egg per day. (nestwatch.org)
  • Though more research into snake behavior is needed, Folwell said the team theorized the hemiclitores "could provide some sort of stimulation signaling for vaginal relaxation and lubrication, which would aid the female in copulation potentially prevent damage from those big hemipene hooks and spines during mating. (motherjones.com)
  • In contrast to males, female centipedes possess a pair of reproductive structures known as oviducts. (insecta-inspecta.com)
  • The organs and associated structures associated with bearing offspring in a female animal. (mcw.edu)
  • The male chicks produced have varying degrees of intersexuality depending on dosage, reproductive system with both male and female structures. (benjaminbarber.org)
  • The female chicks had a partial to full developed right oviducts, instead of just left functional structures. (benjaminbarber.org)
  • Female External Genital Organs The external genital structures include the mons pubis, labia majora, labia minora, and clitoris. (msdmanuals.com)
  • We collected an average of 12 oocytes from each female, and a total of 1,095 reconstructed canine embryos were transferred into 123 recipients. (nature.com)
  • Constitutive Notch signaling causes abnormal development of the oviducts, abnormal angiogenesis, and cyst formation in mouse female reproductive tract. (fiu.edu)
  • Exposure of the non-pregnant and pregnant female will provide the models to evaluate the relative risks of these individuals to impairments of morphological and physiological parameters of the reproductive tract. (cdc.gov)
  • Males in all populations accumulated greater reserves in liver, fat bodies and carcass than did females. (usgs.gov)
  • Ash weight of the carcass showed no significant change and the calcium content of the ash was the same in post and pre-breeding females. (gla.ac.uk)
  • The expression of 13 genes was studied in the oviduct. (bvsalud.org)
  • Genes such as OVGP1, CCT4, ANXA2 and TLR4 were up-regulated and positively correlated with the female sex ratio. (bvsalud.org)
  • 1995) The females also had above normal estrogens levels. (benjaminbarber.org)
  • 1995. Organochlorine compounds and estrogen-related cancers in women. (cdc.gov)
  • 1995. Toxicological consequences of Aroclor 1254 ingestion by female Rhesus ( macaca mulatta ) monkeys. (cdc.gov)
  • Cross-sectional diagram of the female reproductive organs. (wikibooks.org)
  • The arteries of the internal organs of generation of the female, seen from behind. (wikidoc.org)
  • Female snakes have clitorises, scientists have detailed for the first time in a study of the animal's sex organs. (motherjones.com)
  • Gonadal cells that build male and female sex organs proliferate more rapidly than most other cells, such as bone or muscle, in a developing fetus. (oneradionetwork.com)
  • If, however, the baby is genetically male, with both an X and a Y chromosome, and all goes as planned, around day 51 the Y, or male designating chromosome, signals the gonad's Sertoli cells to blast the female organs with an anti-feminine secretion called AFH. (oneradionetwork.com)
  • The female reproductive organs can be subdivided into the internal and external genitalia (see the images below). (medscape.com)
  • Female reproductive organs, anterior view. (medscape.com)
  • Female reproductive organs, sagittal section. (medscape.com)
  • Effects of Aging on the Female Reproductive System Around menopause, changes in the female reproductive organs occur rapidly. (msdmanuals.com)
  • Males have a penis-like organ called a phallodeum, which is inserted into the female cloaca for two to three hours. (aquariumofpacific.org)
  • The USPSTF recommends screening for asymptomatic bacteriuria with urine culture for pregnant women at 12 to 16 weeks gestation or at the first prenatal visit, if later. (southcarolinablues.com)
  • The study was started with pregnant females. (europa.eu)
  • Uteri of both pregnant and non-pregnant females will be evaluated at specific intervals following exposure to MXC. (cdc.gov)
  • However, these females were able to become pregnant and successfully bring healthy fetuses to term within two months, if no further exposure to MXC occurred. (cdc.gov)
  • Thus, exposure of a pregnant female early in pregnancy to MXC has a deleterious effect on that particular pregnancy, but, if the exposure is discontinued, future pregnancies are not at risk. (cdc.gov)
  • Thus, unlike exposure of either an adult nonpregnant female or a pregnant female where there is an immediate effect on reproductive activity followed by a complete reversal of this toxicity once exposure ceases, exposure of a newborn female causes a subsequent decrease in reproductive activity which may be permanent. (cdc.gov)
  • Thestudy population consisted of men and non-pregnant women aged18years with (cases) or without (controls) an inpatient ICD-10-CM diagnosis of TE between 3/1/2020 and 6/30/2021. (cdc.gov)
  • In amniotes - reptiles, birds, and mammals - the egg is enclosed with an outer layer, or amnion, which has led to further development of the oviduct. (wikipedia.org)
  • Egg production is a demanding process for female birds. (gla.ac.uk)
  • No external differences in sex are seen until the turtle becomes an adult, the most obvious difference being the adult males have thicker tails and shorter plastrons (lower shells) than the females. (wikipedia.org)
  • While centipedes may appear relatively similar in external appearance, they exhibit sexual dimorphism-distinct differences between males and females. (insecta-inspecta.com)
  • Social pair bonds tie males and females of most species together throughout the breeding season, but promiscuity is not uncommon. (nestwatch.org)
  • Similarly, the oviduct grows rapidly from Day -4 to Day -1, then it declines in weight as the clutch is laid. (gla.ac.uk)
  • Female genitalia are conspicuously overlooked in comparison to their male counterparts, limiting our understanding of sexual reproduction across vertebrate lineages," the authors wrote. (motherjones.com)
  • The study's lead author and a PhD student at the University of Adelaide, Megan Folwell, said "a massive taboo around female genitalia" was a potential factor in why snake clitorises had not been described earlier. (motherjones.com)
  • External female genitalia. (medscape.com)
  • Females typically build nests, but sometimes both parents or just the male will build it. (nestwatch.org)
  • Earlier last century, between 1900 and 1950, typically as many as 106 males to every 100 female babies were born, probably because obstetrical practices improved so much that more male babies survived pregnancy and delivery. (oneradionetwork.com)
  • In many centipede species, males are often slightly smaller than females and may possess more elaborately developed antennae. (insecta-inspecta.com)
  • Both male and female centipedes release species-specific pheromones that convey information about their reproductive readiness. (insecta-inspecta.com)
  • In most species, females choose males based on an assessment of their overall quality and vigor. (nestwatch.org)
  • Much less commonly, females of some species, such as Wilson's Phalaropes, may have more than one mate as well (polyandry). (nestwatch.org)
  • Clutch size can also vary widely among individuals of the same species depending on food and calcium availability, latitude, age of the female, weather, and time of year. (nestwatch.org)
  • The remainder could be made available by a decrease in female activity that would free protein from metabolism for reproduction. (gla.ac.uk)
  • Of particular interest are those chemicals, which mimic the female hormone of estrogen, which is thought to promote breast cancer (Montague 1991). (benjaminbarber.org)
  • They were close to being laid, but the female didn't make it. (go.com)
  • Table 1 shows the development of embryos transferred to females with pseudopregnancy induced via sonic vibration. (nature.com)
  • This segment of the study clearly demonstrates that a four week exposure of adult female mice to 50% MXC elicits significant estrogenic and toxic effects on the uterine epithelium. (cdc.gov)
  • Its width in an adult female is approximately 1 cm, with an average length of 1.5-2.0 cm. (medscape.com)
  • females grow to greater lengths than males, but males have longer tails than females. (si.edu)
  • Some women with vaginal cysts may have discomfort during sex or trouble inserting a tampon. (medlineplus.gov)
  • The effect of dietary calcium (Ca) and magnesium (Mg) supplementation on serum biochemical parameters, steroid hormones, gene expression, and the sex ratio was investigated in female New Zealand white rabbits. (bvsalud.org)
  • It is theorized that the egg dropped from the 'bloated and floating body of a gravid female'" (Ensign, 2002, p. 8). (creationresearch.org)
  • Inherently poised to construct a little girl, the baby's body begins executing the female program unless specifically interrupted by male hormonal cues which should be transmitted if the baby is genetically male. (oneradionetwork.com)
  • There is a decline in body lipid by 61% of the amount found in females at the start of the laying cycle. (gla.ac.uk)
  • Consorts are larger and engage in all the classic male mating behaviors: competing with each other for female attention, inserting spermatophores inside the female's body, and guarding her after mating. (science20.com)
  • Here we report on size and maturity, from 37 males and 46 females sampled in scientific cruises between September 1996 and August 1999, and commercial fishing cruises between December 2014 and September 2016, in South Brazilian Waters and Northern Uruguayan Waters. (nafo.int)
  • DES was used extensively as a growth stimulant in cattle, however, as early as the 1950 it was also being used a clinical drug for the prevention of miscarriages in women (McLachlan and Arnold, 1996). (benjaminbarber.org)
  • The progeny (F1 generation) continued their exposure past puberty and breeding, through gestation of the F1 females, and up to postnatal day (PND) 6 of the F2 litters. (europa.eu)
  • The most significant differentiator between male and female centipedes lies in the presence of gonopods. (insecta-inspecta.com)
  • The reproductive systems of the male and female have some basic similarities and some specialized differences. (wikibooks.org)
  • This exogenous estrogen effects both male and female foetuses. (benjaminbarber.org)
  • This continues until the woman reaches menopause, usually around the age of 50 years. (wikibooks.org)
  • 2) Women with positive screening results should receive genetic counseling and 3) if indicated after counseling, BRCA testing. (southcarolinablues.com)
  • Such conditions would compel immediate abandonment and preclude any post-depositional manipulation of the egg clutches, or "brooding" by the female dinosaur parent. (creationresearch.org)
  • How Animals Reproduce Asexual Reproduction Sexual Reproduction Life History Strategies Male Reproductive System Female Reproductive System Control of Reproduction Sexually Transmitted Diseases. (slideserve.com)
  • The World Health Organization (WHO) shows an increase in rates of unwanted pregnancies, unsafe abortions, sexually transmitted diseases and neonatal repercussions in women who are sexually abused 1 . (bvsalud.org)
  • The endocrine disruptors just imitate the female hormones - including their synergistic interaction," said Brenker. (innovations-report.com)
  • It is a clinical case report, with the consent of the patient, in the year 2016, of a 16-year-old female adolescent with a personal history of sexual violence by an intimate aggressor. (bvsalud.org)
  • Oviduct - Atrophy in a female B6C3F1/N mouse from a chronic study. (nih.gov)
  • In mice and rats, females require mating stimulation for the maintenance of pregnancy. (nature.com)
  • The production of female mice with pseudopregnancy induced using sonic vibration was as efficient as rats. (nature.com)
  • Sexually mature virgin female mice were exposed to 0.1, 0.5, 1.0, 2.5 or 5.0 MXC via oral gavage for 5 consecutive days for four weeks. (cdc.gov)
  • The third segment of this study dealt with exposing newborn female mice to MXC and then comparing their reproductive activity upon reaching adulthood with that of the mice exposed as adults in the first two arms of this study. (cdc.gov)
  • One-day old female mice were exposed to either 0.1, 0.5 or 1.0 mg MXC for fourteen consecutive days. (cdc.gov)