Lymphatic System

The lymphatic system filters fluid from around cells. It is an important part of the immune system. When people refer to swollen glands in the neck, they are usually referring to swollen lymph nodes. Common areas where lymph nodes can be easily felt, especially if they are enlarged, are: the groin, armpits (axilla), above the clavicle (supraclavicular), in the neck (cervical), and the back of the head just above hairline (occipital).

Staphylococcal Lymphangitis

Inflammation of the lymph system is a common complication following a bacterial infection. This picture shows inflammation of the lymph system around the joint of the little finger. The organism responsible for this lymphangitis is of the staphylococcal family; therefore it is called staphylococcal lymphangitis.

Immune System Structures

The immune system protects the body from potentially harmful substances. The inflammatory response (inflammation) is part of innate immunity. It occurs when tissues are injured by bacteria, trauma, toxins, heat or any other cause.