VGO-0142
QUESTION
A small amount of progesterone is required for the?
OPTIONS
(A) Maintenance of Corpus luteum
(B) Non-contractile condition of the uterus
(C) Ovulation
(D) None of the above
ANSWER
(B) Non-contractile condition of the uterus
EXPLANATION
Progesterone helps maintain the uterus in a relatively quiescent, noncontractile state by reducing myometrial excitability and opposing estrogen-associated contractile activity. It is produced by the corpus luteum but is not itself the principal luteotropic signal maintaining that gland. Ovulation depends primarily on the gonadotropin surge, especially LH. Uterine relaxation is therefore the most direct physiological effect among these choices.
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Veterinary Gynaecology and Obstetrics · 240 Questions
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