4.3 The Heart (GCSE Biology)

The following is a GCSE Biology test covering '4.3 The Heart'

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Question 1

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The heart acts as:

Blood returning from the body into heart is:

Less oxygen reaching the heart muscle due to narrowed arteries can cause:

The muscular wall of the heart is composed mainly of:

Blood from the heart is carried around the body through:

Doctors prescribe statins to:

Heart failure usually results from problems in:

Deoxygenated blood from the body enters the heart via:

The function of valves in the heart is to:

The walls of the left ventricle are thicker to:

The heartbeat rate is roughly around:

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