Physiology mcqs for first year mbbs

Physiology MCQs for first year mbbs:

1. Unit of distensibility is
2. a) ml/mmHg b) mmHg.ml c) mmHg/ml

 

2. The Compliance of veins to arteries
3. a) 8 times b) 16 times c) 24 times

 

3. The pulmonary artery pressure as compared to systemic arterial pressure is
4. a) 1/10th b) 1/6th c) 1/3rd

 

4. Distensibility is
5. a) Compliance/volume b) Volume/ Compliance c) Compliance * Volume

 

5. When blood is 400 ml in arterial system, then pressure is
6. a) 700 mmHg b) 0 mmHg c) 100 mmHg

 

6. The Circulation compensated even if blood loss is
7. a) 25% b) 20% c) 15%

 

7. Delayed compliance occurs in
8. a) Arteries b) Veins c) Arterioles

 

8. Pulse Pressure is
9. a) Compliance / Stroke volume b) compliance * stroke volume c) stroke vol / compliance

 

9. Arterial pressure depends upon
10. a) stroke vol b) compliance c) Both a & b

 

10. Pressure and compliance relationship is a) Direct b) Inverse c) None of these

MCQs From 11 – 20:

11. No incisura is seen in a) Valve stenosis b) Aortic regurgitation c) LVH

 

12. Degree of damping a) Resistance * compliance b) Resistance / compliance c) Compliance / resistance

 

13. Mean arterial pressure in systolic % , diastolic % is a) 50 ,50 b) 40,60 c) 60,40

 

14. The Central Venous pressure is a) 8 mmHg b) 0 mmHg c) -2 mmHg

 

15. 1 mmHg is a) 1 cm water b) 1.36 cm water c) 1.36 mm water

 

16. If pressure in abdominal veins is 30 mmHg then least possible pressure in leg is a) 25 mmHg b) 35 mmHg c) 31 mmHg

 

17. Pressure in leg veins while standing for a long time is a) 70 mmHg b) 20 mmHg c) 90 mmHg

 

18. Saggital Sinus pressure is a) 10 mmHg b) 0 mmHg c) -10 mmHg

 

19. Incompetency of venous valves leads to a) Varicose veins b) Congenital heart disease c) LVH

 

20. Heart acts as feedback regulator for a) IVC b) Bicuspid valve c) Tricuspid valve (Answers on next page)

 

 

Answers:

 

1. A

 

2. C

 

3. B

 

4. A

 

5. B

 

6. A

 

7. B

 

8. C

 

9. C

 

10. B

 

11. B

 

12. A

 

13. B

 

14. B

 

15. B

 

16. C

 

17. C

 

18. C

 

19. A

 

20. C