The Heart and Circulatory System Quiz

What is the primary function of the heart?

• To produce hormones

• To filter waste from the blood

• To digest food

• To pump blood around the body

How many chambers does the human heart have?

• Three

• Two

• Five

• Four

Which blood vessel carries oxygenated blood from the lungs to the heart?

• Pulmonary vein

• Vena cava

• Pulmonary artery

• Aorta

What prevents blood from flowing back into the atria?

• Heart valves

• Nerve signals

• Muscle contractions

• Blood pressure

What is the main artery that carries oxygenated blood from the heart to the body?

• Pulmonary artery

• Aorta

• Coronary artery

• Vena cava

What type of circulation involves the right side of the heart and the lungs?

• Lymphatic circulation

• Systemic circulation

• Pulmonary circulation

• Coronary circulation

What happens to carbon dioxide in the pulmonary circulation?

• It is stored in the heart

• It is converted into oxygen

• It diffuses into the lungs

• It is absorbed into the blood

Which side of the heart is involved in systemic circulation?

• Left side

• Right side

• Both sides

• Neither side

What is the pressure condition of the systemic circulation?

• Low pressure

• Variable pressure

• High pressure

• No pressure

How many times does blood pass through the heart in one complete circulation of the body?

• Twice

• Three times

• Once

• Four times