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1) regarding corpus luteum which is incorrect :
a- it developed under the effect of LH
b- it secretes progesterone
c- when pregnancy occurs degeneration of corpus luteum is preventedby hCG
d- if oocyte is not fertilized the corpus luteum degenerate 10-12 days after ovulation
e- corpus luteum of pregnancy remain active throughout the gastation period
2) which of the following component plays the most active role in invading the endometrium during implantation:
a- epiblast
b- syncytiotrophoblast
c- hypoblast
d- extraembryonic somatic mesoderm
e- extraembryonic splanchnic mesoderm
3) proliferative phase is influenced by the following hormones:
a- estrogen
b- progesterone
c- luetinizing hormone LH
d.lutenizing hormone and estrogene.
e.estrogene and progesterone.
4) regarding female reproductive cycle which the statement is incorrect:
a- the secretory phase of menstrual cycle is controlled by progesterone
b-follicle-stimulating hormone FSH is secreted by ovarian follicle
c- secondary follicle has antrum filled with follicular fluid
d-ovulation is triggered by surge LH
e-functional layer of uterine wall slongled off during mensturation
5) Regarding spermatogenisis, all of the followings are correct except,
a.spermatids are haploid cells.
b. sperms are actively motile germ cells.
c.Primary spermatocytes are made before birth.
6) Regarding the ovarian follicle, choose the incorrect statement,
a- the ovarian follicleproduces FSH.
b- It is transformed into carpus uteam after the secondary oocyte is ovulated.
c- Its develpment and growing is influenced mainly by estrogine
7) All of these events are right regarding fertilization except
a-it intiates cleavage of the fertilized zygote.
b-Female and male pronuclei are indistinguishable.
c-Stimuates secondary oocyte to complete its second meiotic division and become a mature oocyte.
d-Once the zona pellucida is penetrated by a sperm, it becomes imprmiable to any other sperm.
e-It normally occurs in the medial side of the uterine tube.
the answers are
1-e
2-b
3-a
4-b
