Definition, Meaning & Synonyms

capillaries

noun

kuh-PIL-uh-reez

Definition

Capillaries are the smallest blood vessels in the body, connecting arterioles and venules.

Examples

Capillaries are vital for the delivery of oxygen to cells.
When you feel cold, capillaries constrict to reduce blood flow to the skin.
Diabetes can affect the health of your capillaries, leading to various complications.

Meaning

They play a crucial role in the circulatory system by allowing for the exchange of oxygen, carbon dioxide, nutrients, and waste products between blood and surrounding tissues.