Ans,Adrenal Glands -Location .
Two adrenal glands are situated above kidneys.
Division
Each adrenal gland consists of two parts. The outer part is cortex and the inner part is medulla.
Hormones
Adrenal medulla secretes a hormone called epinephrine or adrenaline in response to stress.
Role of Adrenaline
Adrenaline prepares our body to overcome emergency situations. Therefore, it is also termed as'emergency hormone".
When a person experiences fear, anger or anxiety, the rate and intensity of heartbeat increases, blood pressure increases, blood flow to the limbs increases, blood flow to the alimentary canal and skin is reduced. Such changes prepare the body to face any emergency situation.
Role of Corticosteroids
The adrenal cortex secretes many hormones called corticosteroids which maintain the balance of salts in blood.