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Name the blood vessel in each of the following descriptions: 1. 2. 3. 4.

You should be able to: � Explain the cardiac cycle in terms of atrial

The cardiac cycle is a series of events that take place during one heart

What could systolic and diastolic blood pressure mean? Systolic blood pressure: The level of

The amount of blood pumped around the body is called the cardiac output, and

1. 2. Have a go at the card sort, describing the events of the

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Get out your notes ready for your presentation of heart structure!

Name the blood vessel in each of the following descriptions: 1. 2. 3. 4. 5. Joins the right ventricle to the capillaries of the lungs pulmonary artery Carries oxygenated blood away from the heart aorta Carries deoxygenated blood away from the liver hepatic vein The first main blood vessel that an oxygen molecule reaches after being absorbed from an alveolus pulmonary vein Has the highest blood pressure aorta

Coronary Arteries

You should be able to: � Explain the cardiac cycle in terms of atrial systole, ventricular systole and diastole. � Explain the opening and closing of AV and semilunar valves in terms of differences in pressure at different stages of the cardiac cycle � Analyse and interpret data relating to pressure and volume changes during the cardiac cycle.

The cardiac cycle is a series of events that take place during one heart beat. It consists of: � Atrial systole � Ventricular systole � Diastole

What could systolic and diastolic blood pressure mean? Systolic blood pressure: The level of pressure when your heart pumps blood through your arteries and around your body: this is when the pressure is highest. Diastolic pressure: the level of pressure when your heart is resting before it pumps again: this is when the pressure is lowest.

The amount of blood pumped around the body is called the cardiac output, and depends on two factors: l the stroke volume – the volume of blood pumped by the left ventricle in each heart beat. A typical value for an adult at rest is 75 ml. l the heart rate – the number of times the heart beats per minute. A typical value for an adult at rest is 70 bpm. cardiac output = stroke volume × heart rate A typical resting cardiac output is 4– 6 litres per minute. This can rise to as much as 40 litres per minute in highly trained endurance athletes.

1. 2. Have a go at the card sort, describing the events of the cardiac cycle. Use you completed card sort and notes to answer the questions on the cardiac cycle.