Lymphatic System

Lymphatic System: Description and Role in Immune Defense

The lymphatic system is an important part of our body that plays a key role in immune defense. It consists of lymphatic vessels, lymph nodes, lymphatic ducts and Peckett's cistern.

Lymph is a colorless liquid that circulates in the lymphatic system. It is formed from fluid that leaves the capillaries of the circulatory system into the tissues of the body. Lymphatic vessels collect this fluid and carry it to the lymph nodes. Lymphatic vessels also collect cell breakdown products and microorganisms that can be dangerous to our health.

Lymph nodes are where lymph is filtered. They are located on the path of the lymphatic vessels and are nodes formed from lymphoid tissue. Lymph passes through the lymph nodes, where microorganisms and other dangerous substances are removed from it. Lymph nodes also play an important role in immune defense as they contain white blood cells that can attack and destroy infectious agents.

Lymphatic ducts are large lymphatic vessels that collect lymph from the lymph nodes and carry it into the circulatory system. There are two main lymphatic ducts - right and thoracic. The right lymphatic duct collects lymph from the right side of the body, including the right arm, the right side of the head and neck, and the right side of the chest and abdomen. The thoracic lymphatic duct collects lymph from the left side of the body and from the lower right side of the body.

Peckett's tank is an extension