Reproductive Flashcards Preview

HSCI100 > Reproductive > Flashcards

Flashcards in Reproductive Deck (15):
1

endometrium

uterus lining that is built up and lost each month as menstrual flow, usual site of implantation

2

gonads vs germ cells

ovaries/testes vs eggs/sperm

3

seminal vesical

pair of glands, produces fluid for sperm and thickens semen

4

prostate gland

produces alkaline secretions that activate sperm, reduces acidity

5

bulbourethral gland

pair of glands, produces mucous secretion before ejaculation that neutralizes acidic urine in urethra

6

epidymis

pair of ducts, sperm are stored and mature

7

vasocongestion

tissues fill w/ blood (sexual arousal)

8

myotonia

muscles undergo rhythmic sustained contraction (sexual arousal)

9

4 stages of arousal

1. excitement
2. plateau
3. orgasm
4. resolution

10

corpus cavernosa

an erectile tissue

11

erection

parasympathetic n.s. -> nitric oxide released -> cGMP in cells -> dilation of vessels -> filled with blood -> erection

12

erectile dysfunction

erectile tissue does not expand enough to compress veins

13

viagra

blocks phosphodiesterase that breaks down cGMP and prolongs erections

14

spermatogenesis

sperm production (meiosis, all 4 N cells generate sperm)

15

oogenesis

egg production (meiosis, 1 egg + 2-3 polar bodies formed)
- polar bodies hold discarded chromosomes -> disintegrate
- all eggs (400k) already produced by puberty
- 1 egg released/month