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The LH surge is caused by a ______ feedback effect of increased estradiol.


A) positive
B) negative

C) A) and B)
D) undefined

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The follicular phase is characterized by elevated rising concentrations of estrogen.

A) True
B) False

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Inhibin prevents release of LH from the anterior pituitary.

A) True
B) False

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Viagra works by blocking ________________ in order to raise cGMP concentration and promote vasodilation of vascular smooth muscle of the penis to produce an erection.


A) 5-alpha reductase
B) aromatase
C) ATPase
D) cGMP phosphodiesterase

E) B) and D)
F) All of the above

Correct Answer

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The myometrium is the inner most layer of the uterus.

A) True
B) False

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Estradiol amounts rise during the ___________ phase of the endometrial menstrual cycle.


A) proliferative
B) menstrual
C) secretory
D) follicular

E) All of the above
F) B) and C)

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