KAAP309 Study Guide - Midterm Guide: Collagen, Lamina Propria, Reticular Connective Tissue
24 Oct 2016
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Returns fluids that leaked from blood vessels (capillaries) back to blood. Monitors for presence of foreign material and initiates defensive countermeasures when necessary. Return interstitial fluid and leaked plasma proteins back to blood. Once interstitial fluid enters lymphatics, it is called lymph. Very permeable (take up proteins, cell debris, pathogens, and cancer cells) Endothelial cells overlap loosely to form one way mini valves. Anchored by collagen filaments, preventing collapse of capillaries; increased ecf volume opens mini valves. Absent from bones, teeth, bone marrow and cns. Absorb digested fat and deliver fatty lymph (chyle) to the blood. Similar to veins, except have thinner walls with more internal valves and anastomose more frequently. Collecting vessels in skin travel with superficial veins. Paired lumbar, paired bronchomediastinal, paired subclavian, paired jugular trunks, single intestinal trunk. Lymph delivered into one or two large ducts. Right lymphatic duct drains right upper arm and right side of head and thorax.
