Capillaries are very tiny blood vessels — so small that a single red blood cell can barely fit through them. They help to connect your arteries and veins in addition to facilitating the exchange of ...

Weight-loss drugs may prevent deadly heart complications by opening blocked blood vessels after heart attacks, groundbreaking ...

Arteries carry oxygenated blood away from your heart. They have thick walls and a muscular layer that keeps your blood moving. Arteries can be as wide as a nickel (about two centimeters). They are the ...

Broken capillaries—also known as telangiectasia—are tiny, dilated blood vessels that become visible under the skin, especially on the nose, cheeks, and chin. They look like fine red threads or small ...

Maybe you've noticed a smattering of tiny red dots across your face and wondered what they are. If you've ruled out acne or acne scars, chances are those red marks are actually tiny broken capillaries ...

The finest scale of blood flow through the brain occurs in capillaries. Suspicions that capillary flow is regulated by cells that put the squeeze on these vessels are now borne out by detailed ...

For physicians, the dream of 3D printing is to one day be able to print functional tissues and organs for patients, made from their own cells. Doing this will allow a level of bespoke geometric ...