1. The heart is located in the-
a) Plural cavity
b) Pericardial cavity
c) Abdominal cavity
d) Cranial cavity
Answer: Pericardial cavity
2. The outer layer of the heart wall is called-
a) Peritonium
b) Endocardium
c) Epicardium
d) Myocardium
Answer: Epicardium
3. The right Atrium receive blood from-
a) Pulmonary veins
b) Superior and inferior Venacava
c) Aorta
d) Pulmonary artery
Answer: Superior and inferior Venacava
4. Which valve is located between the right Atrium and right ventricle?
a) Mitral valve
b) Pulmonary valve
c) Aortic valve
d) Tricuspid valve
Answer: Tricuspid valve
5. The main coronary arteries are-
a) Right and left coronary arteries
b) Pulmonary arteries
c) Aorta and Venacava
d) Carotid arteries
Answer: Right and left coronary arteries
6. Which structure initiates the heartbeat?
a) AV node
b) SA node
c) Bundle of hinge
d) Purkinje fibers
Answer: SA node
7. The pacemaker of the heart is-
a) SA node
b) AV node
c) Purkinje firbers
d) Bundle of hinge
Answer: SA node
8. The heart develops from -
a) Endoderm
b) Ectoderm
c) Mesoderm
d) Neural crest only
Answer: Mesoderm
9. The right ventricle pumps blood to -
a) Lungs
b) Heart
c) Brain
d) Body
Answer: Lungs
10. The great cardiac vein drains into -
a) Pulmonary artery
b) Coronary sinus
c) Superior Venacava
d) Inferior Venacava
Answer: Coronary sinus
11. Which valve prevents backflow from pulmonary artery into right ventricle?
a) Mitral
b) Tricuspid
c) Pulmonary
d) Aortic
Answer: Pulmonary
12. Which chamber has the thinnest wall?
a) Right ventricle
b) Right atrium
c) Left ventricle
d) Left atrium
Answer: Right atrium
13. The atrial septum separates -
a) Right and left ventricle
b) Ventricle from vessel
c) Right and left atria
d) None
Answer: Right and left atria
14. Cardiac tamponade occurs due to -
a) Pleural effusion
b) Myocardial infarction
c) Aortic dissection
d) Pericardial effusion
Answer: Pericardial effusion
15. The apex of the heart is usually at the level of -
a) 3rd intercostal space
b) 5th intercostal space
c) 2nd intercostal space
d) 6th intercostal space
Answer: 5th intercostal space
16. The left atrium receives oxygenated blood from-
a) Superior Venacava
b) Aorta
c) Coronary sinus
d) Pulmonary veins
Answer: Pulmonary veins
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17. Which heart chamber has the thickest wall?
a) Right atrium
b) Left atrium
c) Right ventricle
d) Left ventricle
Answer: Left ventricle
18. The sinoatrial node is also called -
a) Pacemaker of the heart
b) AV node
c) Bundle of hinge
d) Purkinje fibers
Answer: Pacemaker of the heart
19. The coronary arteries originate from the-
a) Pulmonary trunk
b) Ascending aorta
c) Superior Venacava
d) Inferior Venacava
Answer: Ascending aorta
20. The cardiac notch is a features of the -
a) Heart apex
b) Pericardium
c) Right lung
d) Left lung
Answer: Left lung
21. The apex of the heart points-
a) Upwards
b) Downwards
c) To the right
d) Posteriorly
Answer: Downwards
22. Which artery arise from the left ventricle?
a) Pulmonary artery
b) Coronary artery
c) Aorta
d) Carotid artery
Answer: Aorta
23. The fibrous pericardium is attached to the -
a) Diaphragm and sternum
b) Lungs
c) Heart apex
d) Vertebral column
Answer: Diaphragm and sternum
24. The layer responsible for heart contraction is-
a) Endocardium
b) Myocardium
c) Epicardium
d) Pericardium
Answer: Myocardium
25. The valve between the left ventricle and aorta is-
a) Tricuspid valve
b) Mitral valve
c) Pulmonary valve
d) Aortic valve
Answer: Aortic valve
26. The left atrium forms-
a) Right border
b) Base of the heart
c) Apex
d) Anterior surface
Answer: Base of the heart
27. The small cardiac vein runs with -
a) Circumflex artery
b) Right coronary artery
c) LAD artery
d) Posterior interventricular artery
Answer: Right coronary artery
28. The coronary sinus located in the-
a) Left atrium
b) Left ventricle
c) Right ventricle
d) Right atrium
Answer: Right atrium
29. The largest vein in the human body is-
a) Jugular vein
b) Pulmonary vein
c) Cephalic vein
d) Inferior Venacava
Answer: Inferior Venacava
30. What is the average weight of an adult human heart?
a) 200-300 gm
b) 230-350 gm
c) 240-360 gm
d) 300-400 gm
Answer: 230-350 gm
