Ch_41_Reproductive_System Flashcards Preview

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Flashcards in Ch_41_Reproductive_System Deck (77)
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1

scrotum physical description

smooth muscle sac that houses testes away from body

2

why is scrotum elastic?

regulate temperature - further from body cools testes, close to body warms testes

3

what temperature does sperm develop at?

94 - 95 degrees F

4

where are sperm created?

testes

5

testes tubules where meiosis occurs

seminiferous tubules

6

number of sperm created each day

100 - 150 million

7

where in testes is testosterone produced?

interstitial cells

8

what stimulates testosterone creation

FSH

9

what gland does FSH get released from

pituitary gland

10

testes are covered with _ so host will avoid injury to them

neurons sensitive to pressure

11

Epididymus location

top of testes

12

number of days of sperm production located in Epididymis

10-14

13

what do the vas deferens connect

epididymus and prostate gland

14

T/F vas deferens are sperm ducts?

T

15

how do Vas Deferens transport sperm from epididymus to prostate gland?

smooth muscle contractions

16

What is cut by a vasectomy?

Vas Deferens

17

what does the Seminal Vesicles gland release into semen

fructose for nutrition for sperm, prostaglandins for stimulating smooth muscle contraction that propels sperm

18

what does the Prostate Gland release into semen

bicarbonate ions

19

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

20

how does the Prostate Gland help transport sperm through urethra?

muscular contractions

21

besides reproduction, what other major function does Prostrate Gland regulate?

urination

22

What does the Bulbourethral Gland secrete and where?

thick mucous, urethra

23

Why is thick mucous released in the urethra by the Bulbourethral Gland

neutralize vaginal acids and urethra lubrication so that semen can exit easier

24

male external genitalia for delivering semen into vagina

penis

25

urethra description

penis tube semen moves through

26

how is the penis erected when stimulated?

erectile tissues on sides of penis filled with blood

27

What is on the sperm head?

Acrosome and DNA

28

Acrosome role

penetration enzyme

29

What is on the sperm neck?

fructose attachment

30

another word for sperm tail

flagellum