AIIMS Nov 2006 - Physiology Questions

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1. Increase in threshold level if we slowly increase stimulus is:
  1. Accommodation
  2. Adaptation
  3. Electro tonus
  4. Refractoriness


2. Turbulence of blood flow increases in which of the following conditions ?
  1. Reynolds no.<>
  2. Viscocity of fluid decreases
  3. Increase in diameter
  4. Velocity of fluid decreases
Biological and Biophysical Aspects of Ligand-Gated Ion Channel Receptor Superfamilies 20063. Receptor structure for Adrenaline, Dopamine, Serotonin ?
  1. One pass gated channel
  2. Four pass gated channel
  3. Seven transmembrane receptor structure
  4. Ligand gated

4. In arterial end of capillary, filtration is d/t 
a. Low oncotic pressure of capillary 
b. low oncotic pressure of interstitium 
c. high hydrostatic pressure of interstitium 
d. high hydrostatic pressure of capillary 

5. Depressed EEG due to 
a. Ketamine
b. Hypothermia 
c. Early hypoxia 
d. 

6. In high attitude, pulmonary edema 
a. Not exacerbated by exercise 
b. Related to pulmonary edema? 
c. Occurs only in unacclimatized person 
d. 

7. Golgi tendon organ true is 
a. Measures dynamic length 
b. Measures static length 
c. Sends signal to  neuron of same muscle 
d 

8.Mean arterial pressure 

9. Hypothermia associated with all except: 
a. Arrythmic 
b. peripheral resistance 
c. Impaired renal function 

10. Hypotension occuring during S. cord injury is due to: 
a. Loss of para sympathic 
b. Loss of sympathic 
c. Vasovagal syncope 
d. Orthostatic hypotension 

11. 40 mm gap between & tropocollagen is for which molecule so as to allow deposition in bone 
a. Ca2+ 
b. 

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Category: AIIMS Nov 2006 MCQs

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