Which of the following processes occurs first in the
adjustment of body-fluid volume?
a. An inactive protein is converted into
angiotensin.
b. Distal tubules and collecting ducts reabsorb
more sodium and water.
c. Target cells secrete aldosterone.
d. Receptors in walls of the heart detect a drop in
blood pressure.
e. Renin is secreted by cells within the kidneys.
Answer: d
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