Endocrine Physiology Link

The endocrine system is a network of glands that secrete chemical messengers called hormones directly into the bloodstream to regulate distant target organs.

: Most endocrine functions are controlled by negative feedback , where the body's response to a hormone signal eventually turns off the original stimulus to maintain stability.

Physiology, Endocrine Hormones - StatPearls - NCBI Bookshelf Endocrine Physiology

: Hormones like insulin and glucagon (from the pancreas) and thyroid hormones ( T3cap T sub 3 T4cap T sub 4 ) manage energy use and blood sugar levels.

: While the "classical" pathway involves hormones traveling through the blood, they can also act on nearby cells ( paracrine ) or even the secreting cell itself ( autocrine ). The endocrine system is a network of glands

For more specialized or clinical perspectives, you might explore Endocrine Physiology: Hormones and Their Role in Regulation or the open-access LibreTexts section on Endocrine Physiology .

: The system includes the Hypothalamus , Pituitary, Thyroid, Adrenal glands, Pancreas, and gonads (ovaries and testes). Core Functions : : While the "classical" pathway involves hormones traveling

: Cortisol (adrenal glands) coordinates the "fight or flight" response.