Male reproduction

Question 1

What are the testes located in?

Answer 1

the scrotum

Question 2

What cords suspends the testes from the abdomen?

Answer 2

the spermatic cord

Question 3

Spermatozoa are produced in which tubules of the testes?

Answer 3

the seminiferous tubules

Question 4

Where do the seminiferous tubules drain into?

Answer 4

the rete testes

Question 5

What ducts transport sperm from the rete testes to the epididymus?

Answer 5

efferent tubules

Question 6

What are the testes covered by in the scrotum that has parietal peritoneal origin? It lubricates the testes

Answer 6

tunica vaginalis

Question 7

What is the fibrous capsule that encloses the testes and divides the testes into lobules ?

Answer 7

the tunica albuginea

Question 8

What parts can the epididymus be divided into?

Answer 8

head, body and tail

Question 9

What is the blood supply of the testes?

Answer 9

testicular arteries that comes from the abdominal aorta

Question 10

What problems can failure of testes descent occur? Does failure of testes descent effect testosterone production?

Answer 10

effects sperm production but not testosterone production

Question 11

What cells in the testes are also referred to as interstitial cells?

Answer 11

leydig cells

Question 12

What contains the vas deferens, the blood vessels and nerves supplying the testes?

Answer 12

the spermatic cord

Question 13

What does the vas deferens join with to form the ejaculatory duct?

Answer 13

duct from the seminal vesicle

Question 14

Where is the nucleus in the sperm cell?

Answer 14

the head

Question 15

What is the tip of nucleus of a sperm cell covered by that contains enzymes?

Answer 15

acrosome

Question 16

Which part of the sperm cell contains the mitochondria?

Answer 16

the midpiece

Question 17

How long does the entire process of spermatogenesis take?

Answer 17

64 days

Question 18

Which type of cell forms an unbroken ring around the circumference of the seminiferous tubule ?

Answer 18

sertoli cells

Question 19

What type of cell can pahgocytose defective sperm?

Answer 19

sertoli cells

Question 20

What hormone do sertoli cells secrete?

Answer 20

inhibin

Question 21

What does the ejaculatory duct join with?

Answer 21

the urethra

Question 22

What comprises semen?

Answer 22

sperm and secretions from the seminal vesicles and prostate gland

Question 23

What is GnRH secreted by?

Answer 23

the hypothalamus

Question 24

What secretes FSH and LH?

Answer 24

the anterior pituitary

Question 25

What type of cell does FSH act on?

Answer 25

sertoli cells to stimulate spermatogenesis

Question 26

What type of cell does LH act on?

Answer 26

Leydig cells

Question 27

LH acting on leydig cells stimulates the secretion of which hormone?

Answer 27

testosterone

Question 28

What hormone secreted by leydig cells is required for spermatogensis?

Answer 28

testosterone

Question 29

How does testosterone inhibit LH secretion?

Answer 29

acting on the hypothalamus and anterior pituitary

Question 30

What hormone do sertoli cells produce in response to FSH?

Answer 30

inhibin

Question 31

What is testosterone converted into in target cells?

Answer 31

DHT or estradiol

Question 32

What is hypogonadism?

Answer 32

decrease in testosterone release from the testes

Question 33

What are the male, undifferentiated germ cells?

Answer 33

spermatogonia

Question 34

What do spermatogonia divide to become?

Answer 34

primary spermocytes

Question 35

What do primary spermocytes become?

Answer 35

secondary spermocytes

Question 36

What do secondary spermocytes become?

Answer 36

spermatids

Question 37

How many spermatids does each spermocyte produce?

Answer 37

4

Question 38

What do spermatids differentiate into?

Answer 38

spermatozoa