Lymph nodes diagrams to show you the structures and location of lymph nodes in human body. We also provide a diagram of lymph node location on canine. Click on the diagrams below for highly detailed pictures of where the lymph nodes are located.
The lymph node diagram above is the diagram that shows you the overview of all lymph nodes present in our body. A lymph node or lymph gland is an ovoid or kidney-shaped organ of the lymphatic system, and of the adaptive immune system, that is widely present throughout the body. They are linked by the lymphatic vessels as a part of the circulatory system. They are found throughout the body, and are typically 1 to 2 centimeters long. Humans have approximately 500–600 lymph nodes, with clusters found in the underarms, groin, neck, chest, and abdomen. Lymph nodes are soft, lumpy structures, generally tan in color. The following lymph node diagrams include axillary (nodes in the armpits).
Each lymph node is surrounded by a fibrous capsule, which extends inside the lymph node to form trabeculae. The substance of the lymph node is divided into the outer cortex and the inner medulla. The cortex is continuous around the medulla except where the medulla comes into direct contact with the hilum.
The last one above shows the lymph nodes of canine. Lymph nodes are the primary site for antigen presentation and activation in adaptive immune response in B and T lymphocytes. These lymphocytes are continuously recirculated through the lymph nodes and the bloodstream. With these diagrams, we hope you find more information about the lymphatic system in our body. Get more educational diagrams in our site by browsing through numerous categories!