A capillary is a small blood vessel, from 5 to 10 micrometres in diameter, and is part of the microcirculation system. Capillaries are microvessels and the smallest blood vessels in the body.

Capillary, in human physiology, any of the minute blood vessels that form networks throughout the bodily tissues; it is through the capillaries that oxygen, nutrients, and wastes are exchanged between the …

Oct 19, 2025 · Learn what capillaries are, and their structure and function in the lungs and tissues. Also learn about capillary microcirculation and fluid exchange.

Dec 3, 2024 · A capillary is about 5 micrometers (a micrometer is 0.001 millimeter) around. It’s so tiny that red blood cells have to go through it lined up one behind the other.

The meaning of CAPILLARY is resembling a hair especially in slender elongated form. How to use capillary in a sentence.

Dec 28, 2020 · While the capillary network used to be thought of as a permeable bridge between non-permeable arteries and veins, it is now known that these extensive structures help to regulate blood …

Jul 20, 2025 · A capillary bed is the transition point where arterioles (small arteries) branch into capillaries, which then converge into venules (small veins) to carry blood away.

capillary: Any of the small blood vessels that connect arteries to veins. microcirculation: The flow of blood through the smallest vessels such as arterioles, capillaries, and venules.

Mar 12, 2019 · Sinusoid capillaries allow for the exchange of large molecules, even cells. They’re able to do this because they have many larger gaps in their capillary wall, in addition to pores and small...

Capillaries form dense networks between the arteries and the veins, and it is only in the capillary beds that interchange of oxygen, carbon dioxide and nutrients can take place with the cells.