HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How are capillaries adapted for their function? choose 2 Answers
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Have partially permeable walls (that allow substances to flow in and out)
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One-cell thick
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Presence of valves
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Large lumen
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Explanation:
Detailed explanation-1: -Capillaries measure 5-10 m in diameter and are only one cell thick. Capillaries connect arterioles and venules and enable the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and surrounding tissues.
Detailed explanation-2: -The walls of capillaries are made up of a thin cell layer called endothelium that’s surrounded by another thin layer called a basement membrane.
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