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Medical Mcqs

Body temperature is maintained by ______________?

  • (A)  Postural position
  • (B)  Covering of the body
  • (C)  Peripheral vasoconstriction
  • (D)  all of the above
Submitted By :Ali Uppal


which receptor is responsible for monitoring the rate of muscle stretch ?

  • (A)  Nuclear bag intrafusal fibers
  • (B)  Nuclear chain
  • (C)  Golgi tendon organ
  • (D)  Pacinium corpuscles
Submitted By :Ali Uppal


First change to occur after nerve cut is_______________?

  • (A)  Schwan cell mitosis
  • (B)  Axonal sprouting
  • (C)  Myelin sheath degeneration
  • (D)  Nuclear disintegration
Submitted By :Ali Uppal


Blood brain barriers is absent in all of the following areas except__________________?

  • (A)  Subfornical region
  • (B)  Habenuclear trigone
  • (C)  Area posterma
  • (D)  Neurohypophysis
Submitted By :Ali Uppal


Axon hillock is part of the soma of neuron which________________?

  • (A)  Has dense Nissl grandules
  • (B)  Has no Nissl granules
  • (C)  Is at commencement of dendrites
  • (D)  Is round in shape
Submitted By :Ali Uppal


In nerve , the magnitude of the action potential overshoot is normally a function of the______________?

  • (A)  Magnitude of the stimulus
  • (B)  Intracellular potassium concentration
  • (C)  extracellular sodium concentration
  • (D)  resting membrane potential
Submitted By :Ali Uppal


Stimulating mechanoreceptors or nociceptors in mouth triggers the_______________?

  • (A)  Jaw opening reflex
  • (B)  Jaw clenching reflex
  • (C)  Jaw gnashing reflex
  • (D)  None of the above
Submitted By :Ali Uppal


Following are the changes during accommodation except_______________?

  • (A)  Constriction of pupil
  • (B)  Dilatation of pupil
  • (C)  Convergence of eye ball
  • (D)  Increase in the anterior curvature of lens
Submitted By :Ali Uppal


Pain is conducted by_______________?

  • (A)  A-alpha fibers
  • (B)  A-beta fibers
  • (C)  A-gamma fibers
  • (D)  A-delta fibers
Submitted By :Ali Uppal


Hunger centre of brain is________________?

  • (A)  Hypothalamus
  • (B)  Stria nigra
  • (C)  Frontal lobe
  • (D)  Temporal lobe
Submitted By :Ali Uppal