ovulation

Question 1

phase 1: menses

Answer 1

5 days, uterine lining is shed

Question 2

phase 2: follicular phase

Answer 2

8 days, egg is matured with follicle, LH + FSH stimulating follicle growth, follicle begins secreting estorgen

Question 3

LH during follicular phase

Answer 3

1)adds poly A tail to c-mos mrNA allowing it to be translated 2) c-mos phosphorylates CDK component of mitosis promiting factor (mpf= cdk + cyclin) 3) mpf allows egg to complete meiosis 1 and pause in metaphase of meiosis 2

Question 4

geminal vesicle

Answer 4

4n

Question 5

estrogen during follicular phase

Answer 5

stimulates uterine wall growth stimulate cervix lining thinning when estrogen is high enough, egg bursts out of follicle and into the fallopian tube creating corpus luteum

Question 6

ampula

Answer 6

area of the oviduct where fertilization occurs

Question 7

phase 3: luteal phase

Answer 7

follicle is now corpus luteum in the ovary secreting estrogen and progesterone

Question 8

progesterone and estrogen in the luteal phase

Answer 8

P+E inhibit LH and FSH preventing follicular growth, and therefore egg maturation

Question 9

birth control

Answer 9

the pill moves the timing of progesterone to 5 days earlier (into the follicular phase) P+E inhibit FSH + LH limiting follicle growth, forcing follicles to degenerate

Question 10

cumulus cells

Answer 10

inner granulosa cells attached to the egg cell membrane