THE HEART

9arush
Mind Map by , created about 6 years ago

GCSE Biology (The Heart) Mind Map on THE HEART, created by 9arush on 08/07/2013.

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9arush
Created by 9arush about 6 years ago
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THE HEART
1 Coronary Artery
1.1 The coronary artery supplies the heart with oxygen & nutrients
1.2 CHD
1.2.1 when fatty deposits in the artery make the lumen smaller
2 The heart beat
2.1 when the heart muscle contracts it is in SYSTOLE
2.2 When the heart muscle relaxes it is in DIASTOLE
3 General
3.1 The heart is made of Myogenic muscle
3.1.1 This means it contracts by itself
3.2 the hearts pacemaker initiates contractions due to electrical impulses

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