Cardiovascular system

Which muscular structure separates the heart into left and right?

• Ventricles

• Atria

• Septum

Which major artery exits the left ventricle and provides oxygenated blood to the body?

• Pulmonary artery

• Vena cava

• Aorta

Which blood vessels contain valves to prevent the back flow of blood?

• Veins

• Capillaries

• Arteries

Which of the following functions of the cardiovascular system occurs in the veins?

• Diffusion of gases

• Carrying blood away from the heart

• Carrying blood towards the heart

Which unit is used to measure heart rate?

• Beats per second

• Beats

• Beats per minute

Which term can be used to describe the relaxation phase of the heart?

• Systolic

• Diastolic

• Stroke volume

Which of these blood pressure readings is the average blood pressure for an adult?

• 120/80 mmHg

• 140/90 mmHg

• 100/70 mmHg

What is defined as "the amount of blood pumped out of the heart per minute"?

• Stroke volume

• Heart rate

• Cardiac output

Which formula is correct for cardiac output?

• Stroke volume × heart rate

• Stroke volume / heart rate

• Stroke volume + heart rate

Which of the following is a key function of the cardiovascular system?

• Nerve transmission

• Producing movement

• Maintaining body temperature