The Right Atrium

Multiple Choice

The right atrium

A) is the location of the pacemaker cells of a normal heart.
B) prevents blood flow from the right ventricle to the right atrium.
C) prevents blood flow from the left ventricle to the left atrium.
D) prevents blood flow from the pulmonary artery to the right ventricle.
E) prevents blood flow from the aorta to the left ventricle.