Permeable vessels that collect tissue fluid are called what?

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Multiple Choice

Permeable vessels that collect tissue fluid are called what?

Lymph capillaries are the tiny, permeable vessels that collect tissue fluid. Their walls are extremely thin and the endothelial cells overlap like flaps, forming minivalves that open inward when interstitial fluid pressure rises. This makes them highly permeable, so fluid, proteins, and even microbes from the surrounding tissue can enter and become lymph. From there, the fluid travels into larger lymphatic vessels and eventually into ducts such as the thoracic duct. Other options refer to vessels or ducts that carry lymph, not the initial permeable vessels that gather tissue fluid.

Lymph capillaries are the tiny, permeable vessels that collect tissue fluid. Their walls are extremely thin and the endothelial cells overlap like flaps, forming minivalves that open inward when interstitial fluid pressure rises. This makes them highly permeable, so fluid, proteins, and even microbes from the surrounding tissue can enter and become lymph. From there, the fluid travels into larger lymphatic vessels and eventually into ducts such as the thoracic duct. Other options refer to vessels or ducts that carry lymph, not the initial permeable vessels that gather tissue fluid.

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