Calcium homeostasis primarily reflects
A) a balance between absorption in the gut and excretion at the kidneys.
B) careful regulation of blood calcium levels by the kidneys.
C) an interplay between parathormone and aldosterone.
D) an interplay between reserves in the bone, the rate of absorption, and the rate of excretion.
E) hormonal control of calcium reserves in the bones.

Question

Quizplus · Accepted Answer

Calcium homeostasis primarily reflects the interplay between reserves in the bone, the rate of absorption in the gut, and the rate of excretion at the kidneys. The bones are the largest reservoir of calcium in the body and release the mineral into circulation when needed. The absorption of calcium in the gut is stimulated by vitamin D and regulated by various hormones. The kidneys excrete excess calcium or retain it when needed to maintain a balance. Hormones like parathyroid hormone and calcitonin also play a role in regulating calcium homeostasis.

Calcium Homeostasis Primarily Reflects