 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
|
|
arteriole
A blood vessel that branches off an artery. Arterioles themselves branch to form capillaries. Arterioles are intermediate in size between arteries and capillaries. They have a high proportion of smooth muscle in their walls, and their nerve supply enables them to be narrowed or widened to meet decreases or increases in the blood-flow needs of the tissues they supply.
Related category
• ANATOMY AND PHYSIOLOGY
Also on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History
Transport Concepts & Designs (partner site)