Physiology MCQs for first year mbbs:
- Unit of distensibility is
- a) ml/mmHg b) mmHg.ml c) mmHg/ml
- The Compliance of veins to arteries
- a) 8 times b) 16 times c) 24 times
- The pulmonary artery pressure as compared to systemic arterial pressure is
- a) 1/10th b) 1/6th c) 1/3rd
- Distensibility is
- a) Compliance/volume b) Volume/ Compliance c) Compliance * Volume
- When blood is 400 ml in arterial system, then pressure is
- a) 700 mmHg b) 0 mmHg c) 100 mmHg
- The Circulation compensated even if blood loss is
- a) 25% b) 20% c) 15%
- Delayed compliance occurs in
- a) Arteries b) Veins c) Arterioles
- Pulse Pressure is
- a) Compliance / Stroke volume b) compliance * stroke volume c) stroke vol / compliance
- Arterial pressure depends upon
- a) stroke vol b) compliance c) Both a & b
- Pressure and compliance relationship is a) Direct b) Inverse c) None of these
MCQs From 11 – 20:
- No incisura is seen in a) Valve stenosis b) Aortic regurgitation c) LVH
- Degree of damping a) Resistance * compliance b) Resistance / compliance c) Compliance / resistance
- Mean arterial pressure in systolic % , diastolic % is a) 50 ,50 b) 40,60 c) 60,40
- The Central Venous pressure is a) 8 mmHg b) 0 mmHg c) -2 mmHg
- 1 mmHg is a) 1 cm water b) 1.36 cm water c) 1.36 mm water
- If pressure in abdominal veins is 30 mmHg then least possible pressure in leg is a) 25 mmHg b) 35 mmHg c) 31 mmHg
- Pressure in leg veins while standing for a long time is a) 70 mmHg b) 20 mmHg c) 90 mmHg
- Saggital Sinus pressure is a) 10 mmHg b) 0 mmHg c) -10 mmHg
- Incompetency of venous valves leads to a) Varicose veins b) Congenital heart disease c) LVH
- Heart acts as feedback regulator for a) IVC b) Bicuspid valve c) Tricuspid valve (Answers on next page)
Answers:
- A
- C
- B
- A
- B
- A
- B
- C
- C
- B
- B
- A
- B
- B
- B
- C
- C
- C
- A
- C
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