kumari 2.3 Flashcards Preview

PHYSIO II > kumari 2.3 > Flashcards

Flashcards in kumari 2.3 Deck (18):
1

where does ovulation occur?

in the ampulla region of the oviduct

2

do spermatozoa or oocytes live longer?

spermatozoa

3

summation of cilia movement - what are the two strokes?

-serial effective stroke
-recovery stroke

4

where is the site of semen deposition in the pig

uterus

5

where is the site of semen deposition in the cow

vagina

6

where is the site of semen deposition in the cat

vagina

7

where is the site of semen deposition in the dog

vagina

8

where is the site of semen deposition in the horse

uterus

9

where is the site of semen deposition in the sheep

vagina

10

what are the primary barriers for sperm to reach the ampulla?

-mucus
-peristaltic muscle contractions
-oviductal fluid moving toward uterus by cilia

11

what in the semen is responsible for rapid transport?

prostaglandins

12

do the spermatozoa that arrive withing a few minutes after mating fertilize the ovum?

no

13

during what phase do sperm undergo capacitation?

slow phase

14

what happens during capacitation?

the cholesterol coat is removed from the sperm surface
-this permits the activation of the acrosome

15

what do channels in the acrosome allow release of:

pro-acrosin and hylauronidase
-which are essential for sperm penetration

16

sperm exchange glycodelin-S for ___ to prevent premature sperm acrosome reaction.

Glycodelin-A and -F

17

a ____ primed uterus is essential for successful transport of sperm

estrogen-primed

18

how are sperm transported during the slow phase?

-uterine contractions
-motility of sperm