The inner part (medulla) of the gland originates from the same cells that develop into the nervous system in the embryo. This hormone also controls carbohydrate and fat metabolism in conjunction with other hormones from the pancreas. The third type has many actions including reduction of inflammation, healing and activity of the immune system. One group acts with the kidney to control salt concentrations in the body, while a second group is the sex hormones. The cortex produces steroid hormones of several types. The outer part (cortex) is controlled by a hormone (adrenocorticotrophic hormone, ACTH) from the pituitary gland.

The adrenals are a pair of distinct endocrine glands, located close to the kidneys.Įach adrenal gland has two parts. The pituitary gland at the base of the brain links to the other endocrine glands and regulates hormone production by the adrenals, thyroid and sexual organs as well as growth and the body's day-to-day cycles of activity (diurnal rhythm). Some cells in other tissues throughout the body also produce certain hormones. The endocrine system includes the adrenal glands, thyroid gland, parathyroid gland, pituitary gland and specialized cells in the pancreas called the Islets of Langerhans.

The hormones pass directly into the blood to affect target cells elsewhere. These regulate and integrate many activities to maintain internal stability of the body. What is the function of endocrine glands?Įndocrine glands produce specialized chemicals called 'hormones'.

Adrenal gland where is it located