Flashcards in Ch_41_Reproductive_System Deck (77)
scrotum physical description
smooth muscle sac that houses testes away from body
why is scrotum elastic?
regulate temperature - further from body cools testes, close to body warms testes
what temperature does sperm develop at?
94 - 95 degrees F
where are sperm created?
testes tubules where meiosis occurs
number of sperm created each day
100 - 150 million
where in testes is testosterone produced?
what stimulates testosterone creation
what gland does FSH get released from
testes are covered with _ so host will avoid injury to them
neurons sensitive to pressure
top of testes
number of days of sperm production located in Epididymis
what do the vas deferens connect
epididymus and prostate gland
T/F vas deferens are sperm ducts?
how do Vas Deferens transport sperm from epididymus to prostate gland?
smooth muscle contractions
What is cut by a vasectomy?
what does the Seminal Vesicles gland release into semen
fructose for nutrition for sperm, prostaglandins for stimulating smooth muscle contraction that propels sperm
what does the Prostate Gland release into semen
why does the Prostate Gland release bicarbonate ions into semen?
the inside of a vagina is very acidic to kill pathogens, the bicarbonate ions nuetralize the acidity so that sperm can survive
how does the Prostate Gland help transport sperm through urethra?
besides reproduction, what other major function does Prostrate Gland regulate?
What does the Bulbourethral Gland secrete and where?
thick mucous, urethra
Why is thick mucous released in the urethra by the Bulbourethral Gland
neutralize vaginal acids and urethra lubrication so that semen can exit easier
male external genitalia for delivering semen into vagina
penis tube semen moves through
how is the penis erected when stimulated?
erectile tissues on sides of penis filled with blood
What is on the sperm head?
Acrosome and DNA
What is on the sperm neck?