Question

Given alongside is a highly diagrammatic sketch of the internal structure of the human heart:
(i) Name the parts numbered 1-11.
(ii) What is the main difference in the quality of blood contained in parts 6 and 7?

Answer 1

(i)
1. Anterior or superior vena cava
2. Pulmonary vein.
3. Mitral or bicuspid valve.
4. Dorsal aorta.
5. Semilurlar aortic valve.
6. Left ventricle.
7. Right ventricle
8. Pulmonary semilunar valve.
9. Pulmonary artery.
10. Tricuspid valve.
11. Right atrium.
(ii) Part 6 contains oxygenated blood whereas part 7 contains deoxygenated blood.