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 · Capillaries are tiny blood vessels that connect your arteries and veins, allowing an exchange of nutrients and gases.

A capillary bed can consist of two types of vessels: true capillaries, which branch mainly from arterioles and provide exchange between cells and the circulation, and vascular shunts, short vessels that …

Aug 3, 2023 · Capillaries are incredibly small and finer blood vessels connecting the arterioles with the venules. They are the smallest blood vessels in our body.

Apr 24, 2023 · A significant function of the cardiovascular system is to deliver oxygen and nutrients to tissues via arteries and their branches. Subsequently, the venous system receives carbon dioxide …

Capillary walls consist of thin endothelial cells through which body fluids and dissolved substances can pass. At the arterial end, the blood pressure within the capillary is higher than the pressure in the …

Its effect on capillary exchange accounts for the reabsorption of water. The plasma proteins suspended in blood cannot move across the semipermeable capillary cell membrane, and so they remain in the …

Mar 12, 2019 · Capillaries are small but they have several important functions. We'll go over the functions of different types of capillaries and what can happen when they don't work properly.