Lymph and Immune System Structure Function Axillary lymph nodes axillary (or armpit) region of the body. They perform the vital function of filtration and conduction of lymph from the upper limbs, pectoral region, and upper back Bronchomediastinal trunks Drain lymph from deep thoracic structures Cisterna chyli It collects lymph from the two large lumbar trunks that drain the lower limbs and from the intestinal trunk that drains the digestive organs; located anterior to the first two lumbar vertebrae. Common iliac lymph nodes drain chiefly the hypogastric and external iliac glands, and their efferent pass to the lateral aortic glands; fo ur to six in number, are grouped behind and on the sides of the common iliac artery, one or two being placed below the bifurcation of the aorta, in front of the fifth lumbar vertebra. Deep cervical lymph nodes associated with their positions adjacent to the internal jugular vein, which runs near the sides of the neck. Deep inguinal lymph nodes helps maintain fluid balance in the bloodstream, filters waste, and plays an important role in immune defense; Inguinal lymph nodes Superficial lymph nodes within the inguinal fossa (anterior groin area); drain lymph from the lower limb, excluding heel and lateral foot area Jugular trunks Drain lymph from both the head and neck Lacteal Highly specialized lymphatic capillary that absorbs dietary fats
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