Heart 25

What are the two upper chambers of the heart called?

• Ventricles

• Atria

• Valves

• Septa

Which chambers of the heart pump blood to the body?

• Atria

• Ventricles

• Valves

• Coronary arteries

Where are the atria located in relation to the ventricles?

• Above

• Below

• To the left

• To the right

What is the primary difference between atria and ventricles?

• Size and function

• Shape only

• Color

• Wall thickness

Blood flows from the right atrium into the right ventricle through which structure?

• Aortic valve

• Pulmonary valve

• Tricuspid valve

• Mitral valve

What structure prevents backflow of blood into the ventricles?

• Chorda tendinea

• Papillary muscle

• Valves

• Trabaeculae carinii

Which of the following is NOT a feature of the ventricles?

• Chorda tendinea

• Pectinate muscle

• Trabeculae carinii

• Papillary muscle

What muscle structure helps anchor the heart valves?

• Pectinate muscle

• Chorda tendinea

• Myocardium

• Endocardium

Which valve is located between the left atrium and left ventricle?

• Triscuspid valve

• Pulmonary valve

• Aortic valve

• Mitral valve

The function of the coronary arteries is to

• Pump blood to the lungs

• Supply blood to the heart muscle

• Control heart rhythm

• Regulate blood pressure