Defense System of Human Body

The immune system of the human body can be divided into two phases. namely-

1. General defense or innate defense or non specific defense
2. Definite Defense or Acquired Defense or Specific Defence
3. General Defense or Non-Specific Defence: The mechanism by which any germs are prevented from entering the body or any germs that have entered are destroyed is called non-specific defence. This is called the innate or innate immune system.
4. Specific defense: The system in which the specific germs that enter the body are destroyed by white blood cells or antibodies is called specific defense. This is called the acquired or adaptive immune system.