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MEDSCI 142 - Reproduction Exam Questions And Correct Answers
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MEDSCI 142 - Reproduction Exam Questions AndCorrect Answers
What is the principal androgen? - ANSWER testosterone
What is the glycoprotein layer between the oocyte and the granulosa cells of an ovarian
follicle called? - ANSWER zona pellucida
The oogenesis begins in females when? - ANSWER before birth
Where are the secretory cells of an ovarian follicle located? - ANSWER theca interna
Throughout the menstrual cycle, at what time would the endometrium be thickest? -
ANSWER late in the postovulatory phase - true the stratum functionalis is the thickest
during the secretory phase just before menstruation. Because the uterus is preparing
for the implantation of a fertilised egg into the lining of the endometrium, in case it
doesn't happen then that's when menstruation happens.
Progesterone would be at its highest levels during the menstrual cycle: - ANSWER late
in the postovulatory phase same as the thickest endometrium
In menstruation, repair of the endometrium during the preovulatory phase is due to the
rising levels of: - ANSWER estrogen
During the menstrual cycle, progesterone is produced by: - ANSWER corpus luteum
The function of progesterone during the menstrual cycle is to: - ANSWER thicken and
maintain the thickness of the endometrium
, If conception does not occur the corpus luteum - ANSWER degenerates into the corpus
albicans
The start of puberty in both sexes is marked by increases in levels of what hormone? -
ANSWER LH
Sertoli cells synthesize what? - ANSWER androgen-binding protein
Testosterone is synthesised by - ANSWER interstitial cells (Leydig cells)
The acrosome of a sperm cell contains what? - ANSWER hyaluronidase for egg
penetration
In the male, LH causes what to occur? - ANSWER testosterone production - LH
stimulates leydig cells that synthesize testosterone in conjuction with cholesterol from
the testes
Interstitial cells do what? - ANSWER produce testosterone
The interstitial cells of the testes are an important target for what hormone? - ANSWER
LH
At what time in the menstrual cycle are the levels of LH the highest? - ANSWER Just
before ovulation
Which hormone is responsible for the regression of the Müllerian ducts? - ANSWER AMH
- anti-Mullerian hormone
Which regresses in the male - wolfferian or Mullerian? - ANSWER Mullerian
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