HUMB1000 Lecture Notes - Lecture 30: White Pulp, Pathogenic Bacteria, Macrophage
Document Summary
Functions of the lymphatic system: fluid balance. Excess interstitial fluid enters lymphatic capillaries and becomes lymph (30l from capillaries into interstitial fluid, 27l return leaving 3l, called lymph: fat absorption. Absorption of fat and other substances from digestive tract via lacteals: defence. Microorganisms and other foreign substances are filtered from lymph by lymph nodes and from blood by spleen. If the 3l is left in the interstitial space, organs can be damaged: lymphatic capillaries. Join to form lymphatic vessels: lymphatic vessels. Have valves that ensure one-way flow (beaded appearance: lymph nodes. Distributed along vessel and filter lymph: lymphatic trunks. Jugular, subclavian, broncho-mediastinal, intestinal, lumbar: lymphatic ducts. Drain tissues of body and move lymph into major veins. Drains right side of head, right-upper limb, right thorax. Drains remainder of the body: lymphatic nodules, lymph nodes, tonsils, spleen, thymus. Compendium 10 - how do we protect ourselves page 120. Lymphatic vessels: carry lymph away from tissues, lymphatic capillaries.
