SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Veins
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Arteries
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Cappillaries
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None of the above
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Detailed explanation-1: -Final answer: One-cell thick vessels are called capillaries.
Detailed explanation-2: -Capillaries. Found near every living cell of the body. Microscopic – walls are one cell thick, this allows for the diffusion of substances into the cells from the capillaries and out of the cells into the capillaries.
Detailed explanation-3: -Capillaries connect the smallest branches of arteries and veins. The capillaries are where molecules are exchanged between the blood and the body’s cells. The walls of capillaries are just one cell thick. Capillaries therefore allow molecules to diffuse across the capillary walls.
Detailed explanation-4: -Answer. Capillaries are vessels that are one cell thick and are responsible for exchange of nutrients and waste between the blood and cells.
Detailed explanation-5: -Capillaries. (A) Electron micrograph of a cross section of a small capillary in the pancreas. The wall is formed by a single endothelial cell surrounded by a basal lamina.