What tissues make up the adrenal gland?

The adrenal gland is primarily composed of two types of tissues: the adrenal cortex and the adrenal medulla. The adrenal cortex, which is the outer layer, is made up of three zones that produce steroid hormones, including glucocorticoids, mineralocorticoids, and androgens. The adrenal medulla, the inner part, consists of neuroendocrine cells that produce catecholamines, such as adrenaline and noradrenaline, which are involved in the body’s response to stress. Together, these tissues play crucial roles in regulating metabolism, immune response, and stress management.