The heart

What is the arrow pointing to?

• right atrium

• left atrium

• right ventricle

• left ventricle

What is the arrow pointing to?

• pulmonary artery

• myocardium

• pulmonary vein

• aorta

This chamber of the heart that RECEIVES blood returning from the body

• Right Atrium
• Right Ventricle
• Left Atrium
• Left Ventricle

The major blood vessel that carries oxygenated blood out of the heart is the

• left atrium
• right atrium
• aorta
• vena cava

The purpose of heart valves is to 

• set the pace at which the heart beats
• prevent blood from flowing backward
• oxygenate the blood as it passes through the valve
• add minerals to the blood

The two superior receiving chambers of the heart are known as the _________

• atria
• ventricles

Which has valves, arteries or veins?

• Arteries
• Veins

True or False: The atriums are located below the ventricles.

• True
• False

Why are the walls of the left ventricle thicker than that of the right ventricle?

• The left ventricle must force blood into all the capillaries of the lungs 
• the left ventricle doesn't skip leg day
• This is false, the walls of the right ventricle are thicker
• Blood from the left ventricle is pumped throught the entire body 

A flap of tissue that prevents blood from flowing backward

• Aorta
• Atrium
• Septum
• Valve