Which system's glands secrete hormones to influence various body functions?

The endocrine system is responsible for the secretion of hormones, which are chemical messengers that influence a wide range of physiological functions in the body. Hormones are released into the bloodstream by various glands, including the pituitary, thyroid, adrenal glands, and pancreas, among others. Once in circulation, these hormones can affect metabolism, growth and development, tissue function, and mood, thereby regulating numerous bodily processes.

This system operates through a complex network that ensures the body maintains homeostasis, which is vital for overall health. Unlike the nervous system, which transmits signals rapidly through neurons, the endocrine system responds more slowly but has longer-lasting effects due to the sustained presence of hormones in the bloodstream. By understanding the role of the endocrine system in hormone regulation, one can appreciate its critical importance in maintaining bodily functions and responding to changes in the environment.