Science B4.4 - Helping the heart 0.0 / 5 ? ScienceThe human bodyGCSEAQA Created by: HollyCreated on: 21-06-17 20:37 How can damaged heart valves be replaced? Using biological or mechanical valves 1 of 5 What are the four chambers of the heart? Right atrium, left atrium, right ventricle, left ventricle 2 of 5 What is the resting heart rate controlled by? A group of cells in the right atrium that form a natural pacemaker 3 of 5 What are artificial pacemakers? Electrical devices used to correct irregularities in the heart rhythm 4 of 5 What are artificial pacemakers used for? To keep patients alive while they wait for a transplant, or for their heart to rest as an aid to recovery 5 of 5
EDEXCEL GCSE 9-1 COMBINED SCIENCE FOUNDATION PAPER 2 BIOLOGY 2 QUESTION PAPER SAMPLE ASSESSMENT PAPER 0.0 / 5
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