Male Reproductive

Question 1

organs of the male reproductive system

Answer 1

prostate gland, seminal vesicle, penis, vas deferens, testes, scrotum, urethra

Question 2

how is the sex of a baby determined?

Answer 2

by type of sperm that fertilizes the egg
X: female
Y: male

Question 3

SRY gene

Answer 3

sex-determining region of Y-chromosome

Question 4

fetus gonads begin to develop at ___ weeks

Answer 4

5 or 6

Question 5

the genital tubercle becomes what structure?

Answer 5

glans penis

Question 6

the urogenital folds become what structure?

Answer 6

erectile tissue

Question 7

the labioscrotal folds become what structure?

Answer 7

scrotum

Question 8

male gonads

Answer 8

testes

Question 9

produces sperm

Answer 9

spermatogenic cells

Question 10

produces testosterone

Answer 10

interstitial (Leydig)

Question 11

what part of the sperm contains the enzymes that allow it to penetrate the egg?

Answer 11

acrosome

Question 12

where is the ampulla and what structures does it connect?

Answer 12

vas deferens; joins the ducts of the seminal vesicle

Question 13

where is the ejaculatory duct located?

Answer 13

between vas deferens and ducts of duct of seminal vesicle

Question 14

the urethra is the passage for…

Answer 14

sperm and urine

Question 15

sustentacular cells

Answer 15

aka nurse or Sertoli; regulates sperm production

Question 16

BTB

Answer 16

blood-testis barrier

Question 17

seminal vesicles function

Answer 17

secretes the viscous, nutrient-rich part of seminal fluid (60% of semen volume); contains fructose and prostaglandins

Question 18

prostate gland function

Answer 18

adds watery, milky-looking secretion to seminal fluid (30% of semen volume); produces protein that promotes the sticking of sperm to the vaginal wall

Question 19

bulbourethral gland function

Answer 19

secretes alkaline fluid (5% of semen volume); lubricates head of penis prior to insertion

Question 20

muscles that supports scrotal pouch

Answer 20

Dartos and Cremaster

Question 21

spermatic cord

Answer 21

fibrous cylinders located in inguinal canals

Question 22

vasectomy cuts into what

Answer 22

vas deferens

Question 23

erectile tissue

Answer 23

corpus spongiosum (houses urethra)
corpora cavernosa

Question 24

how much sperm is ejected during ejaculation and how many?

Answer 24

2-5 mL and 120 million sperm/mL

Question 25

what causes infertility?

Answer 25

number, size, shape, motility of sperm; sometimes may be caused by antibodies

Question 26

what determines infertility?

Answer 26

less than 25 million sperm/mL

Question 27

how many sperm can actually reach the sperm?

Answer 27

50-200

Question 28

how long can women reproduce compared to men?

Answer 28

3 decades vs whole life