Electrocardiagrams

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This resource from the Institute of Physics, describes how electrocardiagrams (ECGs) record the activity of the heart through electrodes placed on a patient's skin. The teacher's notes contain an introduction to ECGs and lesson notes for the associated PowerPoint file. A mark scheme for the worksheet is also included. The worksheet contains questions that could be used as a summative test on the topic (10 marks). The animated PowerPoint shows how blood flow and muscle contraction within the heart is related to the ECG trace. The graphs show how heart rate can be calculated by measuring the period between successive peaks on the ECG.

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Medical Physics, POSTED BY