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lymph node
anatomy
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Also known as: lymph gland
lymphatic system of the head and neck
- Related Topics:
- lymphoid tissue king’s evil lymph nodule
lymph node, any of the small, bean-shaped masses of lymphoid tissue enclosed by a capsule of connective tissue that occur in association with the lymphatic vessels. As part of the lymphatic system, lymph nodes serve as filters for the blood, providing specialized tissues where foreign antigens can be trapped and exposed to cells of the immune system for destruction. They are typically found concentrated near junctions of the major lymphatic vessels, most prominently in the neck, groin, and armpits. Each lymph node is divided into two general regions, the capsule and the cortex. The capsule is an outer layer of ...(100 of 591 words)