High School

True or false: Lymphatic capillaries are thin-walled, closed-ended tubes.

Answer :

The given statement is true. "Lymphatic capillaries are thin-walled, closed-ended tubes" is true.

The lymphatic capillaries are thin-walled, closed-ended tubes, which are microscopic vessels that drain interstitial fluid into lymphatic vessels. Lymphatic capillaries are thinner than blood capillaries. They have overlapping endothelial cells that act as one-way valves.

This makes it possible for interstitial fluid to enter the capillary, but it can't flow back out. The cells are anchored to surrounding tissues by anchoring filaments, which help to open the flaps when interstitial fluid accumulates in the tissue.

The lymphatic system comprises a network of lymphatic vessels and nodes. It's essential for immune function and the maintenance of fluid balance within the body. It aids in the transport of lymph, a fluid that contains white blood cells and other substances, from tissues to the bloodstream.

Therefore, the statement "Lymphatic capillaries are thin-walled, closed-ended tubes" is true.

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