Answer to Question #172731 in Human Anatomy and Physiology for Cass

Question

Trace of blood flow beginning with the left ventricle to the first digit of the left foot and back again

Answer 1

Blood flows from the left atrium into the left ventricle through the open mitral valve. When the ventricle is full, the mitral valve shuts to prevent blood from flowing backwards into the atrium. Blood leaves the heart through the aortic valve into the aorta and to the rest of the body.