Untitled d ocs.google.com/document/d/1Ds2txxizoe2wjasEr b4Cad22dzCjopN6lG00/edit

Question

Untitled d ocs.google.com/document/d/1Ds2txxizoe2wjasEr b4Cad22dzCjopN6lG00/edit Arial TOPIC: Lymphatic System Assists in Fluid Circulation A. How are lymph capillaries structurally and functionalty SIMILAR to blood capillaries? B. How are lymph vessels structurally and functionally SIMILAR to veins which carry blood? C. Describe why normal blood flow through the cardiovascular system absolutely depends on a healthy lymiphatic system to assist in fluid flow TOPIC: Lymph Fluid A. Explain why excess intercellular fluid easily enters lymphatic capillaries (but not venous blood capillaries). B. Describe and explain the differences in CHEMICAL composition between the 3 primary body fluids: blood, intercellular (AKA interstitial) fluid, and lymph. C. Describe and explain the differences in CELL composition between the 3 primary body fluids: blood, intercellular (AKA interstitial) fluid, and lymph.

Explanation / Answer

A. Both lymph capillaries and blood capillaries are microscopic and have one layer of endothelium and both helps in directing flow of liquid.

B. Both lymph capillaries and veins are valved and create directional flow of liquid.

C. Lymph transport blood components back to the blood stream and maintain the correct volume of blood circulation. Unless these components are returned to the blood stream, the volume of blood will become insufficient. Thus normal blood flow depends on healthy lymphatic system.

Lymph fluid:

A. Lymphatic capillaries have very little extra cellular matrix, hence helps in absorption. Lymphatic capillaries are more dilated than blood capillaries and are anchored to the connective tissue by specialized filaments that extend from the abluminal surface of endothelial cells into the connective tissue, that allows them to respond to changes in interstitial pressure by opening overlapping endothelial junctions to allow the influx of interstitial fluid.

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