Question

question 28 (1.3 points) when blood calcium level is too low, what will kidney release for homeostasis? calcitriol calcitonin thyroxine parathyroid hormone

Explanation:

When blood - calcium levels are low, the parathyroid glands secrete parathyroid hormone. This hormone acts to increase blood - calcium levels by promoting calcium release from bones, enhancing calcium reabsorption in the kidneys, and increasing the absorption of calcium in the intestines through activation of vitamin D. Thyroxine is involved in metabolism regulation, calcitonin decreases blood - calcium levels when they are high, and calcitriol is the active form of vitamin D which helps in calcium absorption but is not directly released by the kidneys in response to low blood - calcium levels.

Answer:

A. parathyroid hormone