BIOB33H3 Lecture Notes - Lecture 12: Middle Ear, Cochlea, Eustachian Tube
9 Mar 2013
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**assigned readings: p. 612-613 lymphoctyes (includes the type of lymphocytes and lymphocytes in the immune response fig 23. 6) Primary lymphoid structure (thymus gland) causes differentiation of lymphocytes resulting in: **secondary lymphoid structures (lymph nodes and tonsils) consist of lymphocytes and more b cells to battle infectious agents. Provides an alternative route for the transport of: The blood pressure in capillaries is about 35 mm hg. This pressure forces solutes and waste out of the plasma into the interstitial fluid area. The lymphoid system eventually connects with the venous system. Small lymphatic vessels are called - lymphatic capillaries. Large-diameter lymphatic vessels are called - lymphatic ducts. *lymphatic capillaries have anchoring filaments that connect to the surrounding connective tissue to keep the capillaries open. Pressure in the lymphatic vessels is lower than the pressure in the veins. *inhalation decreases thoracic pressure, which helps to move lymph toward the venous system (subclavians) Lymphocytes are the primary cells of the lymphoid system.
