the sequence of events in a heartbeat, including contraction and relaxation phases

when the heart is contracting causing ejection of blood

when the heart is relaxing and filling with blood

The cardiac cycle

Physical education

The structure of the heart

Blood vessels, blood cells and the vascular shunt

A practical exploration of the pathway of blood

The relationship between heart rate, stroke volume and cardiac output

Air pathway from the atmosphere to alveoli and gaseous exchange

A practical exploration of how the cardio-respiratory systems work together

Mechanics of breathing and interpretation of a spirometer trace

This unit will examine the structure and function of both the cardiovascular and respiratory systems. It includes the correct anatomical names and location of different chambers, valves and blood vessels as well as the pathway of air through to the alveoli and how gaseous exchange occurs.

Anatomy and physiology: the cardio-respiratory system

contraction of atria then ventricles with a short pause in between

contraction of ventricles then atria with a short pause in between

It represents the relaxation phase of the heartbeat.

Which of the following does systole refer to?

the sequence of events in a heartbeat, including contraction and relaxation

the division of left and right sides of the heart

Which of the following is the best description of the cardiac cycle?

The relaxation phase of the cardiac cycle is known as ...

the sequence of events in a heartbeat (contraction and relaxation)

the contraction phase where blood is ejected from the heart

the relaxation phase where the heart fills with blood

Match the following key terms and descriptions.

The heart relaxes (called diastole) and fills with blood returning via the veins

The heart contracts (called systole) from the top chambers (atria) first.

The tricuspid and bicuspid valves open to allow blood down.

The tricuspid and bicuspid valves close to prevent backflow.

The ventricles contract ejecting blood from the heart into the arteries.

The next cycle begins with diastole (relaxation).

Place the following stages of the cardiac cycle in the correct order, starting with the heart filling with blood.

Which chamber does blood first enter the heart into from the lungs?

Which of the following blood vessels carries blood at low pressure?

Blood is pumped out of the right atrium into the right {{ }} before being pumped out of the heart.

The atria are the biggest chambers in the heart.

The ventricles are at the top of the heart.

The septum prevents oxygenated blood from mixing with deoxygenated blood.

Which of the following statements are correct?

The tricuspid valve separates the {{ }} atrium and ventricle.

Place the following parts of the circulatory system in the correct order for blood flow starting at the lungs.

The cardiac cycle

Lesson outcome