Question

Atrial contraction accounts for most of the ventricular filling. A) True B) False

Answer 1

false

Step-by-step explanation:

atrial contraction normally accounts for about 10% of left ventricular filling when a person is at rest because most of ventricular filling occurs prior to atrial contraction as blood passively flows from the pulmonary veins, into the left atrium, then into the left ventricle through the open mitral valve.