The Heart 2.0 / 5 based on 1 rating ? ScienceASAQA Created by: kynaatCreated on: 26-12-12 13:18 Found between the left atrium and left ventricle. Bicuspid valve 1 of 7 When the left ventricle contracts, blood flows into the... Aorta 2 of 7 One complete sequence of contraction and relaxation is called a... Cardiac cycle 3 of 7 Relaxation of the heart muscles is known as... Diastole 4 of 7 What blocks the coronary artery so blood cannot flow past?? Fatty deposits 5 of 7 Lactic acid builds up in the muscles during exercise, this is called the... Oxygen debt 6 of 7 What is the stimulus for the heart to increase it's speed of concentration?? Carbon dioxide 7 of 7
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