The Heart 0.0 / 5 ? Applied ScienceThe HeartA2/A-levelAQA Created by: morgsx2001Created on: 22-03-19 12:25 69107231485 Across 1. The artery carrying blood from the right ventricle of the heart to the lungs for oxygenation (9, 6) 4. A valve in the human heart between the left ventricle and the aorta (6, 5) 5. Two lower chambers of the heart (8) 9. It is a bundle of cardiac muscle fibres that conducts the electrical impulses that regulate the heartbeat (6, 2, 3) Down 2. What is known as the heart's natural pacemaker (4, 6, 4) 3. The cardiac muscle fibres that form a network in the ventricular walls (8, 6) 6. The valve between the left atrium and the left ventricle of the heart, which has two tapered cusps (6, 5) 7. A large vein carrying deoxygenated blood into the heart (8, 4, 4) 8. The main artery of the body, supplying oxygenated blood to the circulatory system (5) 10. A valve that is situated at the opening of the right atrium of the heart into the right ventricle (9, 5)
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