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Sns/v/e— Ð/,4S/7D/e — What artery supplies the heart tissue with blood? During a heartbeat, which contracts first, atria or ventricles? Or do they contract at the same time?

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Page 1: Sns/v/e— Ð/,4S/7D/e — What artery supplies the heart tissue with blood? During a heartbeat, which contracts first, atria or ventricles? Or do they contract at the same time?

Page 2: Sns/v/e— Ð/,4S/7D/e — What artery supplies the heart tissue with blood? During a heartbeat, which contracts first, atria or ventricles? Or do they contract at the same time?

Page 3: Sns/v/e— Ð/,4S/7D/e — What artery supplies the heart tissue with blood? During a heartbeat, which contracts first, atria or ventricles? Or do they contract at the same time?

Page 4: Sns/v/e— Ð/,4S/7D/e — What artery supplies the heart tissue with blood? During a heartbeat, which contracts first, atria or ventricles? Or do they contract at the same time?

Page 5: Sns/v/e— Ð/,4S/7D/e — What artery supplies the heart tissue with blood? During a heartbeat, which contracts first, atria or ventricles? Or do they contract at the same time?

Page 6: Sns/v/e— Ð/,4S/7D/e — What artery supplies the heart tissue with blood? During a heartbeat, which contracts first, atria or ventricles? Or do they contract at the same time?

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