Reproductive Lecture MALE

Question 1

Gonads in males

Answer 1

Testes

Question 2

Testes (primary male sex organ) secretes?

Answer 2

androgen hormone (testosterone)

Question 3

Organ sperm are produced in?

Answer 3

Testes

Question 4

Seminiferous tubules

Answer 4

site of sperm production

Question 5

Interstitial (Leydig) Cells

Answer 5

produce testosterone

Question 6

Sustentactular (sertoli) Cells

Answer 6

Nourish sperm
Form barriers preventing immune attacks
Follicle Stimulating Hormone (FSH)- release androgen-binding protein(ABP)

Question 7

Epididymis

Answer 7

on the back of testes
store sperm until ejaculation
sperm learn how to swim here

Question 8

Scrotum

Answer 8

sack of skin surrounding testes

Question 9

muscle in the testes that elevate and lower testes for temperature control

Answer 9

Dartos and cremaster

Question 10

temperature that testes should be kept at for them to produce sperm?

Answer 10

3 degrees cooler than normal body temperature

Question 11

spermatic cord covers?

Answer 11

nerves, blood vessels, and ductus deferens

Question 12

Corpus Spongiosum

Answer 12

penile(spongy) surrounding urethra
transport sperm and semen during ejaculation

Question 13

Corpus Cavernosa

Answer 13

paired erectile bodies that fill with blood during ejaculation

Question 14

Prepuce

Answer 14

foreskin covers glans penis, removed during circumcision

Question 15

Ductus Deferens

Answer 15

Attaches to epididymis
conveys sperm to urethra

Question 16

Vasectomy

Answer 16

severs ductus deferens preventing sperm from leaving scrotum

Question 17

where does ductus deferens join urethra?

Answer 17

ejaculatory duct

Question 18

Seminal Vesicle

Answer 18

produces 60-70% of semen

Question 19

secretion in seminal vesicle that nourishes sperm

Answer 19

fructose

Question 20

What organs make ejaculatory duct?

Answer 20

ductus deferens and seminal vesicle

Question 20

secretion in seminal vesicle that stimulate cervix

Answer 20

prostaglandins

Question 21

Prostate Gland location

Answer 21

below the bladder

Question 22

Prostate gland produces how much semen?

Answer 22

20-30%

Question 23

secretions of prostate gland

Answer 23

citrate- nourishment for sperm
prostate specific antigen(PSA)- liquify semen after ejaculation

Question 24

Bulbourethral Gland produces how much semen?

Answer 24

10% of semen

Question 25

Secretion functions of bulbourethral gland

Answer 25

coat and lubricate urethra during intercourse

Question 26

Urethra job in males

Answer 26

conveys urine and semen

Question 27

three regions of the urethra

Answer 27

Prostatic urethra
Membranous urethra
Penile urethra

Question 28

Prostatic urethra

Answer 28

within prostate gland

Question 29

Membranous urethra

Answer 29

within pelvic diaphragm muscle

Question 29

Penile (spongy) urethra

Answer 29

within corpus spongiosum of penis

Question 30

Semen

Answer 30

roughly 250-500 million sperm
contains semen and sperm

Question 31

semen released during ejaculation is called?

Answer 31

ejaculate

Question 32

Follicle Stimulating Hormone (FSH)

Answer 32

trigger sustentacular cells to release androgen-binding protein(ABP) - binds to testosterone

Question 33

Luteinizing Hormone(LH)

Answer 33

Triggers interstitial cells to release testosterone

Question 34

Testosterone stimulates?

Answer 34

growth after puberty
muscle growth
RBC
libido(sex drive)

Question 35

Speratogenesis

Answer 35

production of sperm within seminiferous tubules of testes
begins at puberty

Question 36

most cell division occur via?

Answer 36

Mitosis

Question 37

cell division in spermatogenesis occurs via?

Answer 37

Meiosis

Question 38

haploid

Answer 38

cells containing 1 copy of each chromosone

Question 39

arousal is triggered by?

Answer 39

Parasympathetic nervous system

Question 40

Ejaculation triggered by?

Answer 40

Sympathetic reflex