Reproduction 1

Question 1

what is the scrotum?

Answer 1

sac containing testes, regulate testes temp 3 degrees below body temperature by contraction

Question 2

what is in the testes?

Answer 2

in scrotum, store in abdomen before birth before moving to scrotum

seminiferous tubule: SPERM PRODUCING ORGAN, not mature sperm, nourished by sertoli cells

interstitial cells: source of TESTOSTERONE between tubules

Question 3

what is spermatogenesis?

Answer 3

production of sperm stimulated by FSH
sperm has little cytoplasm and therefore little E

mitrochondria and flagellum propel the cell, acrosome is the sperm head with digestive enzymes to break down egg coat for penetration

Question 4

What is ejaculatory duct?

Answer 4

propels sperm and fluids (semen) to urethra

Question 5

What is the sperm route?

Answer 5

testes (seminiferous tubules)

epididymis (mature)

vas deferens (ductus) (carry sperm from testes to body)

ejaculatory duct (sperm mix w/ ejaculatory fluid (cowper + prostate gland + semininal vessel)

urethra (semen leaves penis)

Question 6

what is the seminal vesicle?

Answer 6

supportive, secrete semen (fructose to supply E + prostagladins to stimulate uterine peristalsis to move the semen up a woman’s uterus)

Question 7

what is the prostate gland?

Answer 7

support, donut around ejaculatory duct, milky fluid (sem)

liquify semen (no clump) + alkaline (neutralize acid from urine + vagina)

Question 8

What is the cowper’s/bulbourethral gland?

Answer 8

supportive, small, secretes viscous fluid before ejaculation of sperm and semen, (pre-ejaculation may contain sperm)

Question 9

what is the penis?

Answer 9

3 cylinders of spongy tissue, fills with blood when aroused

parasympathetic (erection), erectile/spongiosum tissue fills with blood, compress veins and urethra
sphincter at base of bladder closes

sympathetic (ejaculation), semen enters urethra, pushed by smooth muscle contraction