Structure of the Heart Quiz

What is the purpose of the coronary arteries?

• To avoid oxygen to the muscle cells of the heart

• To pump blood around the body

• To collect oxygen from the body cells

• To pump blood to the lungs

What is the purpose of the pacemaker in the heart?

• To implant an artificial pacemaker

• To branch out of the aorta

• To control the resting heart rate

• To pump blood around the body

What is the function of the left ventricle in the heart?

• To pump blood to the lungs

• To avoid oxygen to the muscle cells of the heart

• To provide a greater force for pumping blood around the body

• To collect oxygen from the body cells

What is the purpose of the valves in the heart?

• To pump blood to the lungs

• To control the resting heart rate

• To stop the blood from flowing backwards into the atria

• To branch out of the aorta

What is the job of the heart?

• To implant an artificial pacemaker

• To pump blood around the body

• To pump blood to the lungs

• To collect oxygen from the body cells

What is the purpose of the vena cava in the heart?

• To pump blood to the lungs

• To bring in the oxygenated blood from the body

• To pump blood around the body

• To avoid oxygen to the muscle cells of the heart

What is the benefit of the double circulatory system in humans?

• The blood cannot deliver a great deal of oxygen

• The blood travels to the organs relatively slowly

• The blood can travel rapidly to the body cells delivering the oxygen that the cells need

• The blood loses a lot of pressure as it passes through the gills

What is the natural resting heart rate controlled by?

• The left atrium

• The right ventricle

• The pacemaker in the right atrium

• The pulmonary artery

What is the purpose of the pulmonary vein in the heart?

• To collect oxygen from the body cells

• To pump blood around the body

• To pump blood to the lungs

• To bring in the oxygenated blood from the body

What is the purpose of the pulmonary artery in the heart?

• To pump blood to the lungs

• To collect oxygen from the body cells

• To bring in the oxygenated blood from the body

• To pump blood around the body