Rising level of which hormone from the corpus luteum act on the estrogen-primed endometrium?
a) progesterone
b) prostaglandins
c) LH
d) FSH
Corpus luteum is the source of ……….in secretory phase of menstrual cycle in female?
a) progesterone
b) prostaglandins
c) estrogen
d) FSH
Explanation It is an endocrine structure in females existing within the ovary once the ovarian follicle has released a mature ovum during ovulation.
Which of the following change/s occur/s when the progesterone level from corpus luteum rises during postovulatory phase?
a) the arteries elaborate and convert functional layer to secretory layer
b) the uterine glands enlarge and coil
c) the uterine glands begin secreting nutritious glycogen into the uterine cavity
d) all of these
Explanation these nutrients sustain the embryo until it has implanted in the blood-rich endometrial lining.
The longest phase of menstrual cycle is
a) proliferative phase
b) menstrual phase
c) secretory phase
d) both a and c
Explanation secretory phase lasts from day 14 to day 28 (14 days)
What will happen if fertilization has not occurred after ovulation in female?
a) the corpus luteum begins to degenerate
b) LH blood level declines
c) progesterone levels fall
d) all of these
What will happen if fertilization has not occurred, the corpus luteum begins to degenerate and LH and progesterone level fall
a) endometrial cells die
b) set the stage for menstruation
c) hormonal support of endometrium deprived
d) all of these
Explanation all these happen on day 28 during ovarian cycle of human female
