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5. What is the difference between the voice of a girl and a boy? Why this happens?
What is the imnortance of adrenal glands in humans?
Answers
Answer:
The adrenal glands are two small structures that sit on top of the kidneys, deep in the back, behind the abdominal cavity and well beneath the back muscles. Although they are small, usually weighing each about a tenth of an ounce, they are powerful factories that produce many hormones that are critically important to your overall health and well-being.
The adrenal glands are divided into an outside layer called the cortex and an inner layer called the medulla. Cells in the adrenal cortex make steroid hormones derived from cholesterol, including glucocorticoids (cortisol), mineralocorticoids (aldosterone) and androgrens. The medulla makes catecholamines (adrenaline).
Each of these hormones has a specific function in the body. Various diseases can result from excess or deficiencies of the adrenal hormones described below.
Cortisol
Cortisol is a glucocorticoid which is necessary to sustain all cells and to respond to physical stress. A low cortisol level can lead to subtle but serious problems, and in severe cases of stress and emergency, to shock and even death.
Aldosterone
Aldosterone is a mineralocorticoid which is necessary to maintain the balance of sodium and potassium in the body and helps to stabilize blood pressure.