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Wednesday, February 22, 2012

Adrenal Glands Function - Lesson 302

We are going to learn about adrenal glands function now.  Adrenal means above kidneys (ad- above, renal - related to kidneys). The another name of adrenal glands is suprarenal glands. Adrenal glands are endocrine glands as they have ducts. The two glands on the left and right of the kidney have different shapes. The right side adrenal gland is normally triangular in shape and the left side adrenal gland is semilunar in shape. While we are in stress situations, adrenal glands secrete hormones, such as, cortisol, catacholamines, and epinephrine. Function of the kidneys are also affected by the secretion of a hormone named as aldosterone by adrenal glands. Aldosterone controls osmolarity of plasma in blood.

Adrenal glands are situated at the retroperitoneal area above kidneys on both sides. Adrenal glands have two different structures. The outer layer of adrenal glandd is adrenal cortex and the inner layer is medulla. Both adrenal cortex and medulla secrete hormones. The adrenal cortex secretes hormones, such as, cortisol, aldosterone, and androgens. The medulla secretes two hormones named as epinephrine and norepinephrine. The another name of epinephrine is adrenaline and the another name of norepinephrine is noradrenaline. The average weight of adrenal glands is 8 to 10 grams.

Adrenal Glands (above kidney glands)

The hormones that are secreted by the adrenal cortex are termed as corticosteroids. Corticosteroid hormones are of three types, such as, mineral corticosteroids, glucocorticosteroids, cortisol, and andgrogen, estrogen, and progestin. The adrenal medulla secretes two kinds of hormones named commonly as catacholamines. Catacholamines are epinephrine and norepinephrine.

We have learnt something about adrenal glands function. In the next lesson, we will learn about Pancreas. Okay. Come on.

We have learnt something about adrenal glands function. In the next lesson, we will learn more about Adrenal Glands Function. Okay. Come on.

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To go to the prior lesson about Function of The Parathyroid Gland, please visit the following link.

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