-This Figure Shows an Example of Regulation of Hormone Secretion

question 57

Multiple Choice

-This figure shows an example of regulation of hormone secretion by a negative feedback loop.The large box labeled 1 represents the initial stimulus.What hormones are represented by the small boxes labeled a,b,and c?

• A)a = TSH,b = TRH,c = TH
• B)a = TIH,b = TSH,c = TH
• C)a = TRH,b = TSH,c = TIH
• D)a = TRH,b = TSH,c = TH
• E)a = TSH,b = TH,c = TRH

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Definitions:

FSH/LH Surges

A rapid increase in the levels of Follicle-Stimulating Hormone and Luteinizing Hormone, which triggers ovulation in females.

Ovulation

The release of an egg from one of the ovaries, a critical phase in the menstrual cycle involved in reproduction.

Menstruation

The monthly shedding of the lining of the uterus (endometrium) that results in bleeding from the vagina, part of the female reproductive cycle.

Estrogen

A group of steroid hormones that promote the development and maintenance of female characteristics of the body.