問題詳情

15.tWhich activity can appear in lhe ovarian cycle?
(A)tFSH stimulates tiie pituitary to release GnRH.
(B)tWhen FSH and LH levels foil, the corpus luteum shrinks and tiie uterine lining breaks down.
(C)tLuteinizing hormone stimulates the uterus to make progesterone.
(D)tEstrogen levels initially have a positive feedback effect on the pituitary, which is followed by higher estrogen levels causing negative feedback.
(E)tA fully developed corpus luteum inhibits uterine lining growth.

參考答案

答案：B

統計：A:0,B:1,C:2,D:1,E:0

難度：計算中

用户評論

【jocelynho1029】評論

(A)當follicle 長大分泌大量的estradiol時，會正回饋促進GnRH的分泌，使FSH和LH的分泌量大幅上升