11 Questions
What is the effect of aldosterone on principal tubular cells in the nephron?
It stimulates reabsorption of Na+ and secretion of K+.
What is the effect of a rise in plasma K+ concentration on aldosterone secretion?
It increases aldosterone secretion.
What is the effect of aldosterone on urinary excretion of excess K+?
It promotes urinary excretion of excess K+.
What is the effect of a decline in plasma K+ concentration on aldosterone secretion?
It decreases aldosterone secretion.
Which cells in the nephron are stimulated by aldosterone to secrete K+?
Principal tubular cells
Which ion does aldosterone enhance the reabsorption of by principal tubular cells?
Na+
What is the effect of a decrease in plasma Na+ concentration on aldosterone secretion?
It has no effect on aldosterone secretion.
What is the primary function of aldosterone in the nephron?
To stimulate the reabsorption of Na+ and K+.
Which gland secretes aldosterone?
Adrenal cortex
What is the effect of aldosterone on blood pressure?
It increases blood pressure
What is the effect of a decrease in plasma volume on aldosterone secretion?
It increases aldosterone secretion.
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