The Endocrine System
Showing posts with label The Endocrine System. Show all posts
Showing posts with label The Endocrine System. Show all posts

How do glucocorticoids enable the body to deal appropriately with stress?

Naim 06:36

How do glucocorticoids enable the body to deal appropriately with stress?



A) by increasing blood glucose, fatty acid, and amino acid levels and enhancing blood pressure
B) by decreasing the heart rate, thus decreasing blood pressure
C) by stimulating the pancreas to release insulin
D) by blocking the neurotransmitters that prepare the body for the stress response



Answer: A

Thyroxine is a peptide hormone, but its mechanism is different from other peptide hormones. Which of the following statements is true concerning this difference?

Naim 06:36

Thyroxine is a peptide hormone, but its mechanism is different from other peptide hormones. Which of the following statements is true concerning this difference?



A) It causes positive feedback.
B) It does not require a second messenger to effect a response.
C) It is very specific in the cell type it targets.
D) It is a stimulant of cellular metabolism and targets all cells.



Answer: B

A man has been told that he is not synthesizing enough follicle-stimulating hormone (FSH), and for this reason he may be unable to father a child. Choose the correct statement to explain this problem.

Naim 06:35

A man has been told that he is not synthesizing enough follicle-stimulating hormone (FSH), and for this reason he may be unable to father a child. Choose the correct statement to explain this problem.



A) FSH stimulates estrogen secretion by ovarian cells; therefore it is not synthesized by males.
B) The physician is wronga hormone made in the adenohypophysis could not influence fertility.
C) FSH stimulates sperm production in the testes.
D) The man must be producing progesterone, which inhibits the synthesis of FSH.




Answer: C
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