Chapter 19: Direction of Blood Flow

right atrium

1.) Deoxygenated blood enters the ________ superior and inferior vena cava.

right ventricle

2.) Once in the right atrium, deoxygenated blood passes the right atriventricular valve into the ___________.

pulmonary trunk

3.) The right ventricle contracts and forces deoxygenated blood up through the ____________ and it bifurcates into the right and left pulmonary arteries.

lungs

4.) After passing through the right and left pulmonary arteries, the blood reaches the __________ to be oxygenated.

left atrium

5.) Oxygenated blood from the lungs return from the right and left pulmonary veins to enter this chamber: _____________

left ventricle

6.) From the left atrium, oxygenated blood drains through the left atrialventricular valve to enter the _____________.

aorta

7.) The left ventricle contracts and forces blood through the aortic semilunar valve into the __________.