Lymph node Labeling & Lymph StructuresOnline version Chapter 20 by KaitlynYax 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Explanation 9 Darker areas: These are the "islands" of dense tissue. Packed with cells like B cells that are making antibodies. 12 INDENT in lymph node, where the efferent lymphatic vessel leaves the node 13 usually one or two (rarely more) efferent vessels exit at the hilum to carry filtered lymph away. 18 protects airway 19 drains into left subclavian vein 20 drains into right subclavian duct 21 Primary tissue; Where T-cells mature 22 a lymphatic structure of the thoracic duct that receives lymph draining from the abdominal and pelvic and lower limbs. 23 acts as a reservoir for good gut bacteria; contains lymphatic tissue that destroys bacteria 24 Primary tissue; produces all blood cells & where B-cells mature 25 filters lymph 27 filters blood