Reproductive+System+SLS

Shelby Smith October 28, 2008 Science-Human Bio


 * Reproductive System Anatomy (This begins unit 5: Oh Baby)**

You will need to know function and location of the following. On this wiki page you can write the function.

seminal vesicles: each of a pairs of glands that open near the vans deferens near its junction with the urethra and secretes many of the components of semen. vas deferens (also called ductus deferens): The duct that transfers sperm from testicle to urethra.
 * Male Reproductive Anatomy (p.321)**
 * Scrotum**: a pouch of skin containing the testicles.
 * Testis**: an organ that produces spermatozoa.
 * Epididymis**: A highly convoluted duct behind the testis, where sperm passes to the vas deferens.
 * Urethra**: The duct which urine is excreted from the body to the outside.
 * bulbourethral gland**: Deposits a seminal fluid into the urine. Located on the side of the urethra.
 * prostate gland**: a gland surrounding the neck of the bladder.
 * Penis**: The male genital organ which conducts the transfer of sperm during copulation.


 * Sperm production anatomy**
 * seminiferous tubules**: Located in the testicles, and the produces gametes, more commonly known as spermatozoa.
 * sertoli cells**: Also known as the mother cell, the sertoli cells ‘nuture’ the developing sperm cells during spermatogenesis.
 * sperm (head, middle, tail)**: The human sperm cell is haploid, so that its 23 chromosomes can join the 23 chromosomes of the female egg to form a diploid cell. The head contains the nucleus and the middle has a central filamentous core with many mitochondria spiraled around it. Lastly, the tail or the ‘flagellum’ propels the sperm.
 * Acrosome**: Acrosome is an organelle that develops over the anterior half of the sperm's head. The acrosome breaks down the outer membrane of the ovum, so the sperm is able to react with the haploid nucleus found on the ova.

oviducts (also called fallopian tubes, uterine tubes): The passage from the ovaries to the outside of the body. The egg travels along the oviduct.
 * Female Reproductive System**
 * Ovary**: An ovum-producing orgn found in the reproductive system of a woman. They come in pairs and they release the egg for ovulation.
 * Fimbria**: Fringe tissue near the ovary leading to the Fallopian tube.
 * Uterus**: This is where the fetus developes during gestation. It nourishes and accepts the fertilized ovum.
 * Endometirum**: Inner membrane of the uterus.
 * Vagina**: Muscular tube leading from the uterus to the outside of the body.
 * Cervix**: Narrow neck of the uterus where it joins with the top end of the vagina.
 * Vulva**: Region of the external genital organs of the female such as: labia minora, clitoris and labia majora.