What is the primary function of glands in the endocrine system?

The primary function of glands in the endocrine system is to secrete hormones that regulate various bodily processes. Hormones are chemical messengers that travel through the bloodstream to target organs and tissues, where they exert their effects, influencing functions such as metabolism, growth and development, tissue function, and mood regulation. Each gland in the endocrine system has specific hormones it produces, contributing to the overall homeostasis of the body.

For instance, the pancreas secretes insulin to help regulate blood sugar levels, while the adrenal glands produce cortisol, which is involved in stress response and metabolism. The proper functioning of these glands and the hormones they release is vital for maintaining balance within the body.