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 ...

Capillaries, the smallest blood vessels in the body, are particularly affected. The large surface area of the capillary network enables oxygen to be exchanged between the blood and the surrounding ...

All it takes is the flip of a protein "switch" within the tiny wire-like capillaries of the brain to increase the blood flow that ensures optimal brain function. New research has uncovered that ...

Model vessels: study highlights the importance of dilation in the brain. (Courtesy: Shutterstock/Phonlamai-Photo) A new model based on the blood-vessel network in a ...

The expanse of veins, arteries and capillaries underneath the skin keep our cells energized and healthy. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Complex artificial organs could be created by 3D printing a mould of veins, arteries and capillaries in ice, casting that in organic material and then allowing the ice to melt away, resulting in a ...