12 - AIIMS may 2005 physiology mcqs with answers part 1

1q: group A nerve fibers are more susceptible to ?

a. pressure
b. hypoxia
c. local anaesthetics
d. temperature

answer a. pressure

2q: in a fetus the insulin secretion begins by ?

a. 3 months
b. 5 months
c. 7 months
d. 9 months

answer a . 3 months

3q: phantom limb sensations are best described by ?

a. weber Fechner law
b. power law
c. bell magendie law
d. law of projection

answer d. law of projection

4q: synaptic potential can be recorded by ?

a. patch clamp technique
b. voltage clamp technique
c. microelectrode
d. EEG

answer d. EEG

5q: the ECG of 40 year old male was recorded using standard bipolar limb leads . the sum of voltages of the three standard leads was found to be 5 millivolts. This indicates ?

a. a normal heart
b. right ventricular hypertrophy
c. left ventricular hypertrophy
d. increased cardiac muscle mass

answer d. increased cardiac muscle mass

11 - physiology new mcqs - part 5

41q. ventilation perfusion ratio is maximum at ?

 

1. apex of lung
2. base of lung
3. posterior lobe of lung
4. middle of the lung

 

answer: a . apex of lung .

 

42q. apnoea is defined as ?

 

1. stoppage of heart beat
2. cessation of respiration
3. irregular respiration
4. RR

 

Answer: b . cessation of respiration .

 

43q. the neurons may get irreversibly damaged if exposed to significantly hypoxia for ?

 

1. 8 minutes
2. 2 minutes
3. 30 seconds
4. 15 seconds

 

Answer: a . 8  minutes .

 

44q. which of the following is not a vitamin K dependent factor ?

 

1. factor 2
2. factor 7
3. factor 8
4. factor 10

 

answer: c . factor 8 . vitamin K dependent factors are 2,7,9,10 , protein C and protein S .

 

45q. life span of neutrophils is ?

 

1. 6 hours
2. 6 days
3. 10 days
4. 15 days

 

Answer: a . 6 hours .

 

46q. life span of neonatal RBC is ?

 

1. 100 days
2. 120 days
3. 6 months
4. 1 year

 

Answer: a . 100 days .

 

47q. plasma sodium concentration is ?

 

1. 120 meq/l
2. 3.5 meq/l
3. 140 meq/l
4. 110 meq/l

 

Answer: c . 140 meq/l .

 

48q. cardiac index in a normal person is ?

 

1. 2.1
2. 3.2
3. 4.6
4. 5.9

 

Answer: b . 3.2 . cardiac output divided by total surface area of the body .

 

49q. alkali resistant hemoglobin is ?

 

1. Hb A
2. Hb A , C
3. Hb S
4. Hb F

 

Answer: d . Hb F .

 

50q. blood brain barrier is deficient at ?

 

1. area postrema
2. thalamus
3. meta thalamus
4. cerebellum

 

answer: a . area postrema