Osteoclasts become active when Blank______.Multiple choice question.blood calcium levels are lowblood calcium levels are high

Answer

Osteoclasts are specialized cells responsible for the resorption of bone tissue. They play a crucial role in regulating calcium levels in the blood.

1. Blood Calcium Levels Are Low: When the blood calcium levels are low, osteoclast activity increases. This is because the body needs to maintain calcium homeostasis, which is vital for many physiological processes, including muscle contraction and nerve function. To remedy low calcium levels, the body stimulates osteoclasts, which break down bone tissue and release calcium ions into the bloodstream.

2. Blood Calcium Levels Are High: When blood calcium levels are high, osteoclast activity decreases. In this case, the body does not need to release more calcium into the bloodstream and may instead activate osteoblasts, which are responsible for bone formation.

Final Answer

Osteoclasts become active when blood calcium levels are low.