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QUESTION 3

Which of the following statements are correct regarding lymphatic capillaries?

A. Lymphatic capillaries are open-ended, like drinking straws.

B. Lymphatic capillaries have continuous tight junctions, like the capillaries of the brain.

C. Lymphatic capillaries contain endothelial cells separated by a special flaplike valve that can open wide.

D. Lymphatic capillaries have special barriers that stop cancer cells from entering.



Answer :

GinnyAnswer

Final answer:

Lymphatic capillaries are specialized vessels that allow fluid flow with the help of endothelial cell flaps and valves.


Explanation:

Lymphatic capillaries are open-ended vessels that allow interstitial fluid to flow into them through overlapping cells. The endothelial flaps close to prevent backflow when interstitial pressure is low but open up as pressure increases. These vessels contain endothelial cells separated by a special flap-like valve that can open wide, aiding in fluid entry.


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