Select all that are true of calcitonin. Check All That Apply Helps decrease blood calcium More effective in children

Question:- Select all that are true of calcitonin. Check All That Apply Helps decrease blood calcium More effective in children than adults on Inhibits osteoclast activity Signals the kidneys to decrease the loss of calcium in the urine.

Answer

Calcitonin is a hormone in the calcium homeostatic process. It reduces blood calcium levels when their level is too high. Calcitonin is produced by the para-follicular cells of thyroid gland when calcium in plasma concentrations are high. Calcitonin inhibits the activity of osteoclasts – cells that break down bone tissue and release calcium into blood. As osteoclasts are inhibited, less calcium gets released from the bones into blood. Calcitonin also acts as a signal to the kidneys, which reduces the amount of calcium lost there. This saves calcium in the body. So, inhibiting the action of osteoclasts and reducing calcium loss within urine can assist in bringing high blood levels of calcium back down. Children respond better to lowering their calcium with calcitonin than adults. This is the case because children’s bones still grow very fast and therefore calcitonin more readily has an inhibitory impact on osteoclasts that are working vigorously to break down bone tissue. Calcitonin aids in reduction of blood calcium levels by repressing osteoclastic activity and minimizing the amount of calcium lost through excretion. It plays an essential role in the regulation of calcium homeostasis.