The Heart and Circulation

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Mind Map by victoirespongecake21, updated more than 1 year ago
victoirespongecake21
Created by victoirespongecake21 over 5 years ago
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All about GCSE Biology, Section B3.2

Resource summary

The Heart and Circulation
1 The Heart is mainly made up of muscle tissue
2 An ARTERY is a blood vessel carrying blood AWAY from the heart.
3 A vein is a blood vessel carrying blood towards the heart
4 A capillary is a very small blood vessel, very thin to allow substances to move in and out
5 It contains valves to make the blood flow throughout the chambers without backflow
6 A double circulatory system is when blood travels through the heart twice as it flows through the body
7 The difference between ARTERIES and VEINS is that....
7.1 VEINS - Have a valve, thinner muscles and walls, carries detox blood
7.2 ARTERIES - Uses elastic pumps, the recoil keeps pressure high, carries ox blood
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