PC1001 Lecture Notes - Lecture 22: Thoracic Duct, T Cell, Adenoid
Document Summary
The bone marrow is a primary lymph tissue as it has the stem cells for the development of all blood cells. The thymus is another primary site of maturation processing for t lymphocytes. The lymph nodes are secondary lymph tissue which exchange lymphocytes with the lymph. The tonsils, adenoids, appendix, and gut (peyer"s patches) also contain lymphoid tissue. These structures contain resident lymphocytes and resident macrophages. Lymphatic vessels begin as lymphatic capillaries, which are closed on one end. Lymphatic capillaries are located between cells of many tissues. Lymphatic capillaries merge to form lymphatic vessels, which have thin walls and valves. From the lymphatic vessels, lymph passes through lymph no then into lymph trunks. Lymph trunks include lumbar, intestinal, broncho-med subclavian, and jugular trunks. Lymph trunks then merge to form either the thoracic duct o right lymphatic duct and return lymph to the right side of th (svc). s and many h nodes and mediastinal, ct or the f the heart.
