GENERAL HISTOLOGY

Detailed explanation-1: -The lymphatic system is a network of delicate tubes throughout the body. It drains fluid (called lymph) that has leaked from the blood vessels into the tissues and empties it back into the bloodstream via the lymph nodes.

Detailed explanation-2: -Lymph vessels that carry lymph to a lymph node are called afferent lymph vessels, and those that carry it from a lymph node are called efferent lymph vessels, from where the lymph may travel to another lymph node, may be returned to a vein, or may travel to a larger lymph duct.

Detailed explanation-3: -Lymphatic vessels, or tubes, are the pathways that carry lymph. The major lymphatic vessels are: The thoracic duct: It begins near the lower part of the spine and collects lymph from the pelvis, abdomen, and lower chest.

Detailed explanation-4: -Lymphocytes: are white cells which circulate between blood and lymph. They play an important role in fighting infection. There are many kinds of lymphocytes; the main types are T cells, B cells and natural killer cells. Lymphocytes initially develop in the bone marrow.