The relationship between heart rate, stroke volume and cardiac output | Physical education

Starter quiz

What is the sequence of events that make up the heartbeat called?

the cardiac impulse

the cardiac cycle ✓

the septum contraction

the ba-dum
Why does the heart make a ba-dum sound?

the two stage of contraction ✓

the septum causes an echo

the electrical impulse makes a noise

when the valves open they make a noise
The contraction phase of the heartbeat is known as ...

'systole' ✓
The relaxation phase of the heartbeat is known as ...

'diastole' ✓
Match the following key terms and descriptions.

cardiac cycle

⇔

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

systole

⇔

the contraction phase of the heartbeat ✓

diastole

⇔

the relaxation phase of the heartbeat ✓

blood pressure

⇔

the force exerted by the blood on blood vessel walls ✓

cardiac muscle

⇔

a specialised type of involuntary muscle found in the heart ✓
Match the following key terms with the function.

systole

⇔

the contraction phase to pump blood out of the heart ✓

diastole

⇔

the relaxation phase for the heart to fill with blood ✓

septum

⇔

the muscular wall dividing the left and right sides of the heart ✓

atria

⇔

the top chambers of the heart ✓

ventricles

⇔

the bottom chambers of the heart ✓

When we start to exercise our heart ______ increases.

'rate' ✓
Which of the following is a representation of the strength of cardiac contraction?

heart rate

stroke volume ✓

cardiac output

blood pressure
Which of the following is an average value for heart rate at rest?

72 BPM ✓

700 BPM

90 BMP

120 BPM
The resting heart rate of a well trained individual is typically ______ than an untrained individual.

'lower' ✓
Match the following key terms and descriptions.

heart rate

⇔

the number of times the heart beats per minute ✓

stroke volume

⇔

the amount of blood pumped by the heart with each beat ✓

cardiac output

⇔

the volume of blood pumped out of the heart per minute ✓

blood pressure

⇔

the force exerted by the blood on the blood vessel walls ✓
Match the following changes in response to exercise with the correct reasoning.

increase to about 150 BPM

⇔

heart rate response to steady state exercise ✓

increase to about 100 ml

⇔

stroke volume response to exercise for untrained person ✓

increase to about 140 ml

⇔

stroke volume response to exercise for a trained person ✓

increase to 25 L/min

⇔

cardiac output response to exercise for untrained person ✓

increase to 35 L/min

⇔

cardiac output response to exercise for trained person ✓

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Heart rate is the number of times the heart beats per minute (bpm).
Stroke volume is the volume of blood pumped by the heart with each beat (measured in millilitres, mL).
Cardiac Output is the volume of blood pumped by the heart per minute (measured in litres per minute, L/min).
Cardiac output (Q) is calculated by multiplying the heart rate (HR) by the stroke volume (SV).
A heart rate graph shows exercise intensity over a period of time.

Pupils often draw heart rate down to zero on a line graph.

Even at rest your heart is still beating, on average 72 beats per minute, to ensure blood is always circulating around the body to keep you alive.

Heart rate - the number of times the heart beats per minute (bpm)
Stroke volume - the volume of blood pumped out of the heart by each ventricle with each beat (measured in millilitres, ml)
Cardiac output - the volume of blood pumped per minute by each ventricle of the heart (measured in litres per minute, l/min). Calculated as heart rate x stroke volume