kumari 2.3

Question 1

where does ovulation occur?

Answer 1

in the ampulla region of the oviduct

Question 2

do spermatozoa or oocytes live longer?

Answer 2

spermatozoa

Question 3

summation of cilia movement - what are the two strokes?

Answer 3

• serial effective stroke

- recovery stroke

Question 4

where is the site of semen deposition in the pig

Answer 4

uterus

Question 5

where is the site of semen deposition in the cow

Answer 5

vagina

Question 6

where is the site of semen deposition in the cat

Answer 6

vagina

Question 7

where is the site of semen deposition in the dog

Answer 7

vagina

Question 8

where is the site of semen deposition in the horse

Answer 8

uterus

Question 9

where is the site of semen deposition in the sheep

Answer 9

vagina

Question 10

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

Answer 10

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

Question 11

what in the semen is responsible for rapid transport?

Answer 11

prostaglandins

Question 12

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

Answer 12

no

Question 13

during what phase do sperm undergo capacitation?

Answer 13

slow phase

Question 14

what happens during capacitation?

Answer 14

the cholesterol coat is removed from the sperm surface

-this permits the activation of the acrosome

Question 15

what do channels in the acrosome allow release of:

Answer 15

pro-acrosin and hylauronidase

-which are essential for sperm penetration

Question 16

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

Answer 16

Glycodelin-A and -F

Question 17

a ____ primed uterus is essential for successful transport of sperm

Answer 17

estrogen-primed

Question 18

how are sperm transported during the slow phase?

Answer 18

• uterine contractions

- motility of sperm