Question

What is innate immunity? How many types of barriers are present in innate immunity write down their names.

Answer 1

The immune system provides both the types of immune response innate and acquired immune responses. Innate immunity occurs naturally due to genetic factors or physiology. It is a native immune response that present by birth. It provides:

(i) A physical barrier such as skin.

(ii) Physiological barriers such as pH of the stomach, bile juice, saliva and tears.

(iii) Cellular barriers such as leucocytes, macrophage cell and cytokine barrier.