ANP 1105 Lecture Notes - Lecture 15: Hemoglobin, Chyle, Reticular Connective Tissue
17 Apr 2018
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Document Summary
Elaborate networks of drainage vessels that collect the excess protein- containing interstitial fluid and returns it to the bloodstream. Interstitial fluid that has entered the lymphatic vessels. Very permeable (proteins, cell debris, pathogens, and cancer cells), one way minivalves, anchored by collagen filaments so that the increase in interstitial fluid opens the valves instead of collapsing the capillaries. Permeable because the endothelial cells forming the walls of the lymphatic capillaries are not tightly joined. A route for pathogens or cancer cells to travel throughout the body. Lacteals transport absorbed fat from small intestine to blood. Absent from teeth, bones, bone marrow, and the entire nervous system. Similar to veins, with the 3 tunics that veins have, except they have: Lymphatics in the skin travel with superficial veins. Deep lymphatic vessels travel with deep arteries. The largest collecting vessels unite to form lymphatic trunks, which drain large areas of the body.
