GENERAL HISTOLOGY

Detailed explanation-1: -Alarm reaction stage Your heart rate increases, your adrenal gland releases cortisol (a stress hormone), and you receive a boost of adrenaline, which increases energy. This fight-or-flight response occurs in the alarm reaction stage.

Detailed explanation-2: -The resistance stage is when your body begins to repair itself and normalize heart rate, blood pressure, etc. After the initial shock of a stressful event, your body enters this recovery phase but remains on high alert for a while.

Detailed explanation-3: -Stress causes the body to release the hormone cortisol, which is produced by the adrenal glands. Cortisol is important to blood pressure regulation and the normal functioning of several body systems including cardiovascular, circulatory, and male reproduction.

Detailed explanation-4: -When presented with a stressful situation, the body responds by calling for the release of hormones that provide a burst of energy. The hormones epinephrine (also known as adrenaline) and norepinephrine (also known as noradrenaline) are released by the adrenal medulla.