Which system regulates homeostasis through hormone release?

The endocrine system is the correct answer because it is primarily responsible for the regulation of homeostasis within the body through the release of hormones. Hormones are chemical messengers produced by endocrine glands, such as the thyroid, adrenal glands, and pancreas, and they travel through the bloodstream to target organs and tissues, where they elicit specific physiological responses.

These hormonal signals help maintain a stable internal environment by regulating various bodily functions, including metabolism, growth, reproduction, and response to stress. For example, insulin released by the pancreas plays a crucial role in glucose metabolism, while adrenal hormones are involved in the body’s stress response.

Other systems mentioned, like the nervous system, focus on rapid communication through electrical impulses rather than the slower but more persistent regulatory effects provided by hormonal signaling. The immune system is tasked with defending the body against pathogens, while the respiratory system manages gas exchange, none of which primarily regulate homeostasis through hormone release.