The tiny blood vessels throughout the body that connect arteries and veins. Capillaries form an intricate network around body tissues in order to distribute oxygen and nutrients to the cells and remove waste substances. (See circulatory system.)
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How to use capillaries in a sentence
Three muscle-fibres lying beside each other, with the small blood-vessels (capillaries) around and between them.Voice Production in Singing and Speaking|Wesley Mills
Some of the amœboid corpuscles from the blood make their way between the cells forming the walls of the capillaries.
This network of capillaries may be followed into larger veins in which the blood moves regularly.
In the walls of these pouches are numerous capillaries, the ends of arteries which pass from the heart into the lung.
And then my capillaries relaxed, for I dimly saw him footing it away through the darkness.Sixes and Sevens|O. Henry