HBS 3.1.1 Go With the Flow

The heart has ​ (a)   chambers. The ones on top are called​ (b)   . The ones on bottom are called​ (c)   .

• four
• atria
• ventricles
• two
• three
• five
• six

Where is the tricuspid valve?

• Between the left atrium and left ventricle of the heart.
• In the pulmonary artery.
• At the entrance of the aorta.
• Between the right atrium and right ventricle of the heart.

Where is the mitral valve?

• Between the left atrium and left ventricle of the heart.
• Between the aorta and the left ventricle of the heart.
• Between the left atrium and right ventricle of the heart.
• Between the right atrium and right ventricle of the heart.

What is the purpose of valves in the heart?

• The purpose of valves in the heart is to prevent backflow of blood and ensure it flows in one direction.
• To allow blood to flow in both directions
• To store excess blood for later use
• To increase blood pressure in the heart

What is the purpose of the pulmonary valve?

• To allow blood flow from the right ventricle to the lungs.
• To regulate oxygen levels in the blood.
• To connect the right atrium to the right ventricle.
• To permit blood to flow into the pulmonary artery from the right ventricle and prevent backflow.

What is the purpose of the aortic valve?

• To regulate blood pressure in the aorta.
• To allow blood to flow freely from the left ventricle to the aorta.
• To permit blood to flow into the aorta from the left ventricle and to prevent backflow.

• To facilitate oxygen exchange in the lungs.

Click on the:

right ventricle

Click on the:

left ventricle

Click on the:

right atrium

Label 6

a

pulmonary valve

aorta

right atrium

tricuspid valve

left atrium

superior vena cava

aortic valve

mitral valve

right ventricle

left ventricle