The endocrine system consists of cells, tissues, and organs that secrete hormones critical to homeostasis Endocrine glands are ductless glands that secrete hormones

Endocrine communication involves chemical signaling via the release of hormones into the extracellular fluid. From there, hormones diffuse into the bloodstream and may travel to distant body regions, where they elicit a response in target cells.

endocrine system — network of cells, tissues, and organs that secrete hormones as a primary or secondary function. hormone — chemical substance that travels throughout the body in the bloodstream and affects the activity only of its target cells. neural stimuli — release hormones in response to neural stimulation. adrenal glands — small, triangular-shaped endocrine glands located on top of each kidney that produce and release a variety of hormones that are essential for regulating several vital functions….