BMS1032 Neurology Example Q's

Practice questions set by my lecturer 

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1. concerning the motor cortex:

  • motor areas of the cortex receive somatosensory inputs via the thalamus
  • the motor cortex is situated in the postcentral gyrus
  • the motor cortex is in the parietal lobe
  • the coticospinal tract provides the connection between the motor cortical areas and the spinal cord
  • following a cerebral haemorrhage affecting the precentral gyrus of the right hemisphere, the patient feels no sensation on the left side of the body
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2. regarding th functions of the cerebral hemispheres:

  • damage to the temporal lobes can lead to failure of voluntary movement
  • the parietal lobes are involved in pain perception
  • damage to the parietal lobes is associated with paralysis of the muscles on the contralateral side of the body
  • the parietal lobe on the right side of the brain plays a significant role in the comprehension of speech
  • the front lobe on the right side of the brain plays a significant role in the comprehension of speech

3. regarding the parasympathetic division of the ANS:

  • parasympathetic postganglionic neurones secrete noradrenaline onto their target organs
  • parasympathetic ganglionic neurones are distant from their target organs
  • sympathetic postganglionic neurones secrete noradrenaline onto their target organs
  • parasympathetic postganglionic neurons express muscarinic Ach receptors
  • parasympathetic postganglionic neurones are found in spinal segments from T1 to L2

4. which statement about the CNS is correct?

  • it contains the dorsal root ganglia
  • the white matter contains nerve cell bodies
  • the grey matter contains nerve cell bodies
  • it contains 31 pairs of spinal nerves
  • it contains twelve pairs of cranial nerves

5. regarding sensory receptor properties:

  • the first step in sensory transduction is the generation of an AP
  • the amplitude of a train of action potential in an afferent reflects the intensity of the stimulus given to its receptor
  • the frequency of a train of AP in an afferent fibre reflects the intensity of the stimulus given to its receptor
  • all receptors respond to a specific quality of a stimulus
  • a touch receptor will generate a constant rate of discharge for as long as the receptor is stimulated

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