HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It connects an artery and a vein
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It exchanges substances between the blood and organs
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It contains valves
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It has very thin walls for fast diffusion of substances across it
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Detailed explanation-1: -The walls of capillaries are extremely thin. This property allows nutrients and oxygen to travel through the bloodstream and diffuse into the tissues. As a result, waste materials can diffuse out of tissues into the bloodstream and be carried to the lungs, where they can be re-oxygenated.
Detailed explanation-2: -Capillary Function Capillaries form a network through body tissues that connects arterioles and venules and facilitates the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and surrounding tissues.
Detailed explanation-3: -Continuous capillaries are the smallest blood vessels in your vascular system. They connect your arteries to your veins. They also support your brain, endocrine system, kidneys, lungs and small intestines.