Immune system organs

Immune System Organs

These organs of the immune system produce, develop and disseminate the lymphocytes, one of five types of white blood cells, which will recognise and fight infection and diseases. 

The blood and lymphatic vessels are an important part of the lymphoid organs because they carry the lymphocytes to and from different parts of the body. 

 Lymphoid Organs

Bone marrow : 

This is the soft tissue in the hollow centre of bones. All blood cells including most immune cells, are produced within the bone marrow from special cells called stem cells.

Thymus : 

This pinkish gray gland is located behind the breast bone. Its main function is to transform the white blood cells into the various type of T-cells which are able to mount an attack on the organisms.

Tonsils :

Lymph tissue are also found around the entrance to the throat, the most obvious being the tonsil. Tonsils trap and destroy bacteria and germs that we inhale or swallow. 

Spleen : 

This fist-size, spongy and deep red organ is located on the left side of the abdominal cavity just behind the lower rib. It cleanses our blood by filtering used-up and defective red blood cells.