Describe the functions of the following: (i) Epididymis (ii) Vas deferens (iii) Seminiferous tubules (iv) Vagina (iv) Trophoblast
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Epididymis: The epididymis is a long, coiled tube that rests on the backside of each testicle. It transports and stores sperm cells that are produced in the testes.
Vas deferens: The vas deferens is a long, muscular tube that travels from the epididymis into the pelvic cavity, to just behind the bladder. The vas deferens transports mature sperm to the urethra, the tube that carries urine or sperm to outside of the body, in preparation for ejaculation.
The seminiferous tubules function to produce sperm, maintain sperm, and store the sperm. During the process of meiosis the sertoli cells that line theseminiferous tubules undergo the process of differentiation to be converted into sperm.
The vagina is an elastic, muscular canal with a soft, flexible lining that provides lubrication and sensation. The vagina connects the uterus to the outside world. ... During childbirth, the baby passes through the vagina (birth canal). The hymen is a thin membrane of tissue that surrounds and narrows the vaginal opening.
Trophoblasts are specialized cells of the placenta that play an important role in embryo implantation and interaction with the decidualised maternaluterus. The core of placental villi contain mesenchymal cells and placental blood vessels that are directly connected to the fetal circulation via the umbilical cord.
Vas deferens: The vas deferens is a long, muscular tube that travels from the epididymis into the pelvic cavity, to just behind the bladder. The vas deferens transports mature sperm to the urethra, the tube that carries urine or sperm to outside of the body, in preparation for ejaculation.
The seminiferous tubules function to produce sperm, maintain sperm, and store the sperm. During the process of meiosis the sertoli cells that line theseminiferous tubules undergo the process of differentiation to be converted into sperm.
The vagina is an elastic, muscular canal with a soft, flexible lining that provides lubrication and sensation. The vagina connects the uterus to the outside world. ... During childbirth, the baby passes through the vagina (birth canal). The hymen is a thin membrane of tissue that surrounds and narrows the vaginal opening.
Trophoblasts are specialized cells of the placenta that play an important role in embryo implantation and interaction with the decidualised maternaluterus. The core of placental villi contain mesenchymal cells and placental blood vessels that are directly connected to the fetal circulation via the umbilical cord.
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Function of given parts of human reproductive part are as follows:
- Epididymis- It is the region where sperm are stored and matured before entering the Vas deferens.
- Vas deferens- It carries sperm from Epididymis to urethra in preparation of ejaculation.
- Seminiferous tubules- It produces, maintains and stores the sperm.
- Vagina- It is multi-functionary because it is the site of sperm discharge, through this menstrual flow occurs and it is the region through which child birth occurs.
- Trophoblast- It is involved in embryo implantation.
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