Free and printable lymph nodes diagrams have been collected for you in high definition and quality! Lymph nodes are small lumps of tissue that contain white blood cells, which fight infection. They filter lymph fluid, which is composed of fluid and waste products from your body tissues. Lymph nodes also help activate your immune system if you have an infection. They filter harmful substances like bacteria and cancer cells from your body, and help fight infections. They also play an important role in cancer diagnosis, treatment and prognosis. With such importance in your body, let’s look further at the anatomy of the lymph nodes in the following diagram.
As you have read in the previous explanation, the lymph nodes are critical for the body’s immune response and are principal sites where many immune reactions are initiated. During a physical examination, doctors often look for swollen lymph nodes in areas where lymph nodes are abundant, including the neck, around the collarbone, the armpit (axilla), and the groin. This is because swollen lymph nodes are usually the sign of a particular disease. More lymph nodes diagrams are posted in the following images.
Like what is shown in the diagrams above, there are many lymph nodes spread throughout your body. Lymph nodes range in size from a few millimeters to about 1–2 cm long. 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. There are about 500-700 lymph nodes spread throughout the body. Click on the diagrams below for highly detailed pictures of where the lymph nodes are located.
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