Adrenal glands, Biology

Adrenal glands
  1. There are two adrenal glands one each on the top of each kidney.
  2. Adrenal gland has two parts, the outer cortex and inner medulla.
  3. Both cortex and medulla secrete different hormones.
  4. Adrenal Cortex secretes two hormones i) Cortisol and ii) Aldosterone.
  5. Cortisol regulates the protein, fat and carbohydrate metabolism.
  6. Aldosterone increases the reabsorption of water and sodium in the body and helps to maintain blood volume and sodium levels.
  7. Adrenal medulla secretes a hormone called Adrenaline. 
  8. Adrenaline is secreted in conditions like : 1) Physical and mental stress 2) fall in blood sugar levels 3) When the person is injured 4) When exposed to cold conditions 5) Suffering from pain.
  9. It helps the body to face these conditions. There fore it is called as "FIGHT or FLIGHT" hormone.

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Posted Date: 8/29/2012 5:07:41 AM | Location : United States







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