Skip Navigation
Genetics Home Reference: your guide to understanding genetic conditions About   Site Map   Contact Us
Home A service of the U.S. National Library of Medicine®

Heart and circulation

The circulation system is composed of the heart, blood vessels (arteries, veins, and capillaries), and blood. The circulatory system delivers oxygen and nutrients to cells and carries away waste. Altered genes may disrupt the development or function of the circulatory system.

Published: February 8, 2016