Asked Nov 9, 2019

Can you give an overview of the lymphatic and immune system?


Expert Answer

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Step 1

The immune system of a human body is the responsible for defending the individual from any harmful agent. The lymphatic system is part of immune system which is composed of lymphatic organs, lymphatic nodes and lymphatic vessels.

Step 2

Immune system is primarily divided into two types, the innate immunity and the adaptive immunity. On one hand when innate immune system acts in a non-specific manner, adaptive immune system on the other hand, acts in antigen specific manner and has memory of each encounter.

Innate immune system acts as chemical or physical barrier, produce cytokines, activates compliment cascade, removes foreign substance and antigen presentation.

Adaptive immune system has two specific cell types known as B-cells and T-cells. This system works by antigen presentation, response generation and developing immunological memory.

Step 3

The lymphatic system which is a subpart of immune system works by draining proteins and excess fluids from all over the body to the bloodstream, removal of waste products produced by different cells of the body, fighting infections and transportation of fat-soluble vitamins and fats from digestive system to the bloodstream.

The major components of lymphatic system include:

  • Lymph: It is the fluid that circulates in the lymphatic system all over the body and contains lymphocytes (these cells fights infection).
  • Lymph nodes: These are the small gland...

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