How Do Feedback Mechanisms Involve Different Tissues?
Feedback mechanisms often involve multiple tissues and organ systems. For instance, the regulation of calcium levels in the blood involves the parathyroid glands, bones, kidneys, and the intestines. The parathyroid glands release parathyroid hormone (PTH) when calcium levels are low, which then acts on bones to release calcium, on the kidneys to reduce calcium excretion, and on the intestines to increase calcium absorption.
