capillaries

Cultural  

1. 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.)

---

Example Sentences

Their earlier work had shown that small contractile cells called pericytes tighten coronary capillaries during the early stages of ischemia, a condition that occurs when the heart muscle is deprived of oxygen-rich blood.

From Science Daily

“It’s searing pain from all the lactic acid. It floods your system. You blow capillaries in your eyes, you throw up after races,” said Cheek, now an NBC analyst.

From The Wall Street Journal

If done properly, it's unlikely to cause you any harm, but Tina warns that "too much pressure can cause bruising or broken capillaries, so be gentle".

From BBC

Their kidneys retained denser networks of capillaries, stronger filtration barriers, and more stable energy production within cells.

From Science Daily

That pressure prevents cancer medications from flowing through capillaries to hair follicles and nerves in the hands and feet, Hannon said.

From The Wall Street Journal