Page 783 - Atlas of Histology with Functional Correlations

C. Aldosterone and sodium

D. Adrenocorticotropic hormone and sodium

E. Androgens

5. The function and release of secretory products from the adrenal
medulla is controlled by:

A. the adrenal cortex.

B. the pituitary gland.

C. the autonomic nervous system.

D. adrenocorticotropic hormone.

E. blood pressure.

ANSWERS

Correct Answer: A. They secrete and release the hormone calcitonin. This
hormone regulates calcium concentration in the system by lowering calcium
blood levels.

Correct Answer: C. Release of osteoclast-stimulating factor from osteoblasts.

This activates osteoclasts to increase bone resorption and release more calcium
into the blood.

Correct Answer: D. Decreased filtration pressure in the kidney. Also, the
decreased sodium concentration in glomerular filtrate is detected by the
juxtaglomerular apparatus, which activates the eventual release of aldosterone.

Correct Answer: B. Epinephrine and norepinephrine. The release of these
chemicals is in response to stress and prepares the organism for a flight-or-fight
situation.

Correct Answer: C. The autonomic nervous system. The cells of the adrenal

medulla are activated by the sympathetic nervous system to overcome stressful
situations.

ADDITIONAL HISTOLOGIC IMAGES

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