Immune System

Primary Organs (bone marrow, and thymus). And secondary organs (spleen, adenoid, tonsils, lymph nodes and lymph vessels)

Organs of lymphatic system

• It is the site of production of blood stem cells

• it is the site of maturation of most immune cells.

Bone Marrow

It is the site of maturation of some immune cells.

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​Thymus

• It filters substances that travel through lymph

• It is the site where fighting against germs and viruses occur.

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​Lymph Nodes

It cleans the body from wastes and damaged red blood cells.

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​Spleen

• U shapped

• Bone Marrow

• phagocytosis

​​Monocytes

• multi-lobed

• Bone marrow

• Phagocytosis

​​Granulocytes

• round

• Bone marrow

• Produce antibodies

​​B Lymphocytes

• Round

• Bone Marrow + Thymus

• specific antigen

​​T lymphocytes