heart 0.0 / 5 ? Physical EducationAnatomy & physiologyASAQA Created by: ChoppaCreated on: 16-04-19 15:08 4251 Across 1. which chamber has the biggest layer of cardiac muscle around it (4, 9) 4. how many chambers does the heart have (4) 5. the word used to describe the heart produces its own electrical impulse (8) Down 1. top right chamber of the heart (4, 6) 2. bottom left chamber of the heart (5, 9)
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