Lab Exercise 8.5.1

Hormone Levels During The Menstrual Cycle

a) WX represents the hormones, which stimulate the follicle, FSH, and YZ represents the thickening of the corpus luteum, done by LH, which produces progesterone (Y).

b) The ovarian hormones released by WX is estrogen and progesterone is released by YZ.

c) Estrogen and progesterone exert negative feedback effects.

d) See attached graph.

e) See attached graph.

f) Before ovulation the temperature slowly decreases and reaches a high point at ovulation then starts to decrease again.

g) The corpus luteum is essential for establishing and maintaining pregnancy and it secretes hormones that are responsible for the thickening of the endometrium, therefore when the corpus luteum is present the temperature will rise at ovulation and then return back to normal if the egg is not fertilized. Without a corpus luteum the temperature does not rise.

h) The endometrium is thickening at Z because the egg has been......

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Title: Hormone Levels During The Menstrual Cycle
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