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doug-alh122-chptr12

Doug, ALH 122, Chapter 12

QuestionAnswer
Where do male reporductive organs begin to develop when your a fetus? In the abdomen
What is the path that the testes travel in the fetus? From the abdomen they descend through the inguinal canal down into the scrotum (nut sack)
When does the testes usual move down into the scrotum? During the 8th or 9th month of fetal development.
When does the inguinal canal close? Once the testes pass through.
What is it called when the inguinal canal does not close properly and a part of the small intestine descends through the canal? Inguinal Hernia.
What is it called if the testes fail to descend or return to the abdomen? Cryptorchism.
Why is it so important to correct Cryptorchism? Because sperm will not survive in internal body temperature.
Why are testes suspended in the scrotum? Because sperm cannot withstand internal body temperature and need a cooler environment.
What are the 2 main things that testes produce? Sperm and Testosterone.
What are some of the primary and secondary male characteristics that develop during puberty? Longer heavier bones, larger muscles, deep voice, body hair, development of external genitalia, increased metabolism, sexual desire.
What is the shape and length of the Epididymis? Coiled tube about 20 feet long.
What does the Epididymis do to sperm? It receives, stores and matures it.
Does the Epididymis produce anything? Yes, a fluid secreted during ejaculation.
What makes up the external male genitalia? Scrotum, testes, epididymis, penis and urethra
What makes up the internal male genitalia? Vas deferens, seminal vesicle, ejaculatory duct and prostate gland.
What are the 4 characteristics of the vas deferens? 1. Passageway for Sperm and fluid from the epididymis, 2. Joins each epididymis and extends up into the abdominal cavity, 3. curves to base of the urinary bladder, 4. joins with seminal vesicle and forms ejaculatory duct.
What are seminal vesicles? A pair of tubes behind the bladder.
What do seminal vessicles do? Secrete fluid to nourish sperm which makes up a large part of the semen.
What is another name for Vas Deferens? Ductus Deferens.
What is another name for Bulbourethral glands? Cowpers Glands.
Describe the shape and location of the Prostate gland? Donut shape surrounding the urethra
The Prostate Gland is located below what? The urinary bladder
What does the Prostate Gland do? Secretes prostatic alkaline liquid which stimulates sperm motility and neutralizes acidity in the vagina.
How does semen enter the urethra? The muscular tissue of the prostate gland contracts during ejacualtion to empty semen into the urethra.
What do the Bulbourethral Glands do? Produce a fluid that serves as a lubricant for intercourse and aids in the movement of sperm and neutralizes acidity from any remaining urine in the urethra.
What happens to the Penis during sexual arousal? The spaces in the erectile tissue become filled with blood and the squeezed veins prohibit the return of the blood causing an erection.
What causes the release of semen? Muscular contractions and includes fluids from the vas deferens, seminal vesicles, ejaculatory ducts and the prostate gland.
What is another name for foreskin? Prepuce.
What is Gamete? A cell (ovum or spermatozoon) that has 23 chromosomes instead of the usual 46 chromosomes like other cells of the body.
What does semen contain? Spermatozoa, seminal fluid, prostatic fluid and mucus from teh bulbourethral glands.
What are the male sex glands called? Gonads
What is puberty? Period fo time when FSH and LH from the anterior pituitary gland first begin to stimulate the testes. The male sexual characteristics develop and there is a growth spurt.
Perineum (taint) Area between teh anus and where the scrotum attaches to the body.
Created by: dugwhite2
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