Capillaries are ____. (Check that all apply.)Group of answer choicesConfined flow channelslarge flow channelsbroad tubesnarrow tubes
Question
Capillaries are ____. (Check that all apply.)Group of answer choicesConfined flow channelslarge flow channelsbroad tubesnarrow tubes
Solution
Capillaries are confined flow channels and narrow tubes. They are the smallest blood vessels in the body where the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste chemical substances between blood and the surrounding tissues occur. They are not large flow channels or broad tubes.
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