As válvulas cardíacas se abrem e fecham para controlar o fluxo de sangue que entra e sai do coração.
Data da revisão:
5/16/2018
Revisão feita por:
Michael A. Chen, MD, PhD, Associate Professor of Medicine, Division of Cardiology, Harborview Medical Center, University of Washington Medical School, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.