The adrenal or supra-renal glands are extremely important glands in the regulation of a lot of hormonal responses, regulation of blood presseure, water re-absorbtion.
It is uniquely formed of a inner medulla that is very important in forming adrenaline and noradrenaline, responsible for regulating a lot of the nervous system functions.
The outer cortex has 3 zones responsible for secreting the sex hormones, Aldosterone hormone for regulating water and salt reabsorbtion, and hyrodrcortisone for regulation of other hormones and body hormonal homeostasis.
Two adrenal glands are present, Right and left above each kidney. They can be affected by a variety of diseases, most importantly surgically are tumors.