(Circulation in Animals – Paper 03), Total Questions: 20, Subject: Biology, Topic: Circulation in Animals, Question Type: MCQs
| Sr. No. | Questions | Answers |
| 1. | Heart beat is accelerated by (a) Sympathetic nerves and acetylcholine (b) Cranial nerves and adrenaline (c) Cranial nerves and acetylcholine (d) Sympathetic nerves and epinephrine |
Answer: (d) |
| 2. | Heart beat is hard on left side as (a) Aorta is on left side (b) Heart is on left side (c) Ventricles are on left side (d) Left ventricles is on left side |
Answer: (c) |
| 3. | Heart beat is initiated by (a) AV node (b) SA node (c) Bundle of His (d) Purkinje fibres |
Answer: (b) |
| 4. | Heart beat originate from (a) Left atrium (b) Right ventricles (c) Cardiac muscles (d) Pace maker |
Answer: (d) |
| 5. | Heart is perfectly four-chambered in (a) Birds (b) Mammals (c) Reptiles (d) Both a and b |
Answer: (d) |
| 6. | Heart of cockroach has (a) 14 chambers (b) 13 chambers (c) 4 chambers (d) 3 chambers |
Answer: (b) |
| 7. | Heart of cockroach is (a) Myogenic (b) Neuromyogenic (c) Neurogenic (d) None of the above |
Answer: (c) |
| 8. | Heart wall is made of (a) Myocardium (b) Epicardium (c) Endocardium (d) All the above |
Answer: (d) |
| 9. | Hypertension is not caused by (a) Anaemia (b) Atherosclerosis (c) Obesity (d) Arteriosclerosis |
Answer: (a) |
| 10. | Impulse originating from SA node is transmitted to (a) Pacemaker (b) AV node (c) Bundle of HIS (d) Purkinje system |
Answer: (b) |
| 11. | In blood of Cockroach which is absent (a) Plasma (b)Blood cells (c)Nutrients (d)Respiratory pigment |
Answer: (d) |
| 12. | In human beings duration of cardiac cycle is (a) 0.08 sec (b) 0.8 sec (c) 0.5 sec (d) 8.0 sec |
Answer: (b) |
| 13. | In human beings which one regulates heart beat? (a) Purkinje fibres (b) cardiac branch of vagus nerve (c) SA node (d) AV node |
Answer: (b) |
| 14. | In humans, blood passes from post caval to diastolic right atrium of heart due to (a)Stimulation of sino-auricular node (b) Pressure difference between post caval and atrium (c) Pushing open of venous valves (d) Suction pull |
Answer: (b) |
| 15. | In normal blood pressure of 120/80 mm Hg, the numerator represents (a) Diastolic pressure (b) Systolic pressure (c) Pulse pressure (d) Cardiac index |
Answer: (b) |
| 16. | In normal man systolic and diastolic blood pressure is (a) 100 / 80 mm Hg (b) 120 / 80 mm Hg (c) 140 / 100 mm Hg (d) 150 / 90 Hg |
Answer: (b) |
| 17. | In sphygmomanometer what does “sphygmos” mean? (a) Pressure (b) Pulse (c) Systole (d) Blood |
Answer: (b) |
| 18. | Kidney shaped nucleus occurs in (a) Neutrophil (b) Eosinophil (c) Monocyte (d) Lymphocyte |
Answer: (c) |
| 19. | Largest number of white blood corpuscles are (a) Eosinophils (b) Basophils (c) Neutrophils (d) Monocytes |
Answer: (c) |
| 20. | Life of RBC is approximately (a) 365 days (b) 120 days (c) 30 days (d) 7 days |
Answer: (b) |