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
Haemoglobin is part of which type of blood cell?
White
Red
Platelets
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"?
Heart rate
Cardiac output
Which formula is correct for cardiac output?
Stroke volume × heart rate
Stroke volume ÷ heart rate
Stroke volume + heart rate
During exercise the skin can become red because the blood vessels close to the skin enlarge and allow flow. What is this called?
Vasoconstriction
Sweating
Vasodilation