The tissues and organs, including the bone marrow, spleen, thymus, and lymph nodes, that produce and store cells that fight infection and disease. The channels that carry lymph are also part of this system.
- Lymphatic tissue
A part of the body’s immune system that helps protect it from bacteria and other foreign entities. Lymphatic tissue is rich in lymphocytes (and accessory cells such as macrophages and reticular cells). The lymphatic tissue includes the lymph nodes, spleen, tonsils, adenoids and the thymus (an organ in the chest that is particularly large during […]
Small thin channels similar to blood vessels that do not carry blood, but collect and carry tissue fluid (called lymph) from the body to ultimately drain back into the blood stream.
A condition in which excess fluid collects in tissue and causes swelling. Lymphedema may occur in the arm or leg after lymph vessels or lymph nodes in the underarm or groin are removed. It usually causes painless swelling.
B cells and T cells. The B cells make antibodies that attack bacteria and toxins while the T cells attack body cells themselves when they have been taken over by viruses or have become cancerous. Lymphocytes secrete products (lymphokines) that modulate the functional activities of many other types of cells and are often present at […]
Referring to lymphocytes, a type of white blood cell. For example, lymphocytic inflammation in the skin is skin that is infiltrated with ‘lymphocytes.