The Heart and Cardiac cycle. 5.0 / 5 based on 1 ratingTeacher recommended ? BiologyThe heart and cardiac cycleASOCR Created by: elltollittCreated on: 19-02-16 14:12 35214 Across 1. What takes the electircal impulse over the ventrical walls? (3, 6, 2, 3) 4. What are the three waves called in an ECG? (5) 5. What initiates the electrical signal in the controlling of the cycle? (4, 6, 4) Down 2. What is the first stage of the cardiac cycle? (6, 7) 3. Why is the aortic pressure always high? (3, 2, 7, 6)
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