As described in Chapter 4, the various brain structures and other biological factors operate according to a feedback loop in order to regulate the menstrual cycle. Which of the following students provides the best description of this feedback loop?
a. Dakwan: "When the level of a hormone is too high, a structure in the brain is signaled to inhibit hormone production; when the level is too low, the brain structure is signaled to produce more hormones.".
b. Angus: "When the hypothalamus is signaled, a follicle in the hypothalamus releases an egg; when the hypothalamus is not signaled, the follicle does not release the egg.".
c. Sandi: "When a female reaches puberty, her endometrium signals the pituitary gland, which varies in size, depending on the menstrual cycle; for instance, the pituitary gland is largest at the time of ovulation.".
d. Adriana: "When a female has her period, the menstrual flow signals the hypothalamus, which inhibits the development of the follicle.".
A
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