Heart and Circulatory System Quiz

What is the main function of the heart?

• Filter blood

• Digest food

• Produce hormones

• Pump blood

Which chamber of the heart receives oxygenated blood from the lungs?

• left atrium

• right atrium

• left ventricle

• right ventricle

What is the largest artery in the human body?

• vein

• capillary

• pulmonary artery

• aorta

What is the purpose of valves in the heart?

• The purpose of valves in the heart is to regulate blood pressure.

• The purpose of valves in the heart is to produce red blood cells.

• The purpose of valves in the heart is to store excess blood.

• The purpose of valves in the heart is to ensure blood flows in the correct direction and prevent backflow.

What is the process of blood flowing from the heart to the lungs and back called?

• cardiac circulation

• pulmonary circulation

• systemic circulation

• renal circulation

Which blood vessels carry blood away from the heart?

• arteries

• veins

• capillaries

• lymphatic vessels

What is the smallest type of blood vessel?

• capillary

• lymphatic vessel

• vein

• artery

What is the average resting heart rate for a healthy adult?

• 30-50 beats per minute

• 110-130 beats per minute

• 60-100 beats per minute

• 150-180 beats per minute

What is the function of red blood cells?

• Carrying oxygen and removing carbon dioxide

• Transporting nutrients

• Regulating body temperature

• Producing antibodies

What is the purpose of capillaries in the circulatory system?

• The purpose of capillaries in the circulatory system is to facilitate the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues.

• The purpose of capillaries in the circulatory system is to transport blood from the heart to the lungs.

• The purpose of capillaries in the circulatory system is to regulate blood pressure.

• The purpose of capillaries in the circulatory system is to store excess blood.