The cross section of an Adrenal gland has outer __(i)__ and secretes a group of hormones called __(ii)__ and __(iii)__.Inner portion is called __(iv)__ and secretes hormones called __(v)__ and __(vi)__ .
i. Medulla ii.Cortex iii.Glucocorticoids iv. Mineralocorticoids v. Adrenaline vi. Noradrenaline
Our body has one pair of adrenal glands, one at the anterior part of each kidney. The gland is composed of two types of tissues. The centrally located tissue is called the adrenal medulla, and outside this lies the adrenal cortex.
Adrenal cortex; The adrenal cortex secretes many hormones, commonly called as corticoids. It produces mainly two groups of steroid hormones (i) Glucocorticoids and (ii) Mineralocorticoids. The corticoids, which are involved in carbohydrate metabolism are called glucocorticoids. In our body, cortisol is the main glucocorticoid. Corticoids, which regulate the balance of water and electrolytes in our body are called mineralocorticoids. Aldosterone is the main mineralocorticoid in our body.
Adrenal medulla; The adrenal medulla secretes two hormones called adrenaline or epinephrine and noradrenaline or norepinephrine. These are commonly called as catecholamines. Adrenaline and noradrenaline are rapidly secreted in response to stress of any kind and during emergency situations and are called emergency hormones or hormones of Fight or Flight.