Human Reproduction Test - 17

Sperm capacitation refers to the physiological changes spermatozoa must undergo in order to have the ability to penetrate and fertilize an egg.  The change undergone by sperm in the female reproductive tract that enables them to penetrate and fertilize an egg.

Oxytocin is called as Birth Hormone as it causes the contraction of smooth muscles of the uterus leading to the birth of the child.

Pregnancy is the period of time during which a child matures within the womb of the mother. This period is important for the development of a fetus (unborn offspring more than eight weeks after conception). During this time, the fetus must be protected from the internal environment of the mother's body, and this is achieved in many ways. One of the primary forms of protection is the amniotic sac, which is the protective sac and fluid that surrounds the fetus and prevents damage. The membrane that forms this sac is known as the amnion.

Polar bodies form because the egg cell (oocyte) does not divide evenly. The resulting cells have the same DNA, but one is much smaller, called a polar body. Egg and sperm undergo mitosis first, then undergo a second type of cell division called meiosis. This is the type of cell division that results in haploid cells.

A structure within the scrotum that is attached to the back side of the testis. The epididymis is a coiled segment of the spermatic ducts that stores spermatozoa while they mature and then transports the spermatozoa between the testis and the tube connecting the testes with the urethra.

Sexual reproduction is the joining of two cells each from a different parent organism to create a new cell that can grow into a child organism. The child organism gets part of its DNA from each parent, resulting in a new combination of DNA that will control the development of the child. The new cell created by the union of cells from the mother and father is called a zygote. The zygote will divide many times and begin development before it attaches to the wall of the uterus to get help from the mother. So it needs to have all the resources it needs to flourish on its own -- and the quality of those resources goes a long way toward determining the health of the embryo.

The acrosome is an organelle that develops over the anterior half of the head in the spermatozoa (sperm cells) of many animals including humans. It is a cap-like structure derived from the Golgi apparatus. ... In Eutherian mammals the acrosome contains digestive enzymes.