HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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they don’t take up much space
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they easily connect arteries and veins
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they allow for the easy passage (diffusion) of gases such as oxygen and carbon dioxide (between the blood and body cells)
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None of the above
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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: -They help to connect your arteries and veins in addition to facilitating the exchange of certain elements between your blood and tissues. This is why tissues that are very active, such as your muscles, liver, and kidneys, have an abundance of capillaries.
Detailed explanation-3: -It is important for capillaries to have thin, permeable walls to allow substances to diffuse into and out of cells.
Detailed explanation-4: -Therefore, the slow rate of blood flow and thin walls of the capillaries allow the diffusion of gases.