CNS, MSK and Special Senses MCQs Part 2

11. Lesions within the basal ganglia produce the following signs except:
Hypotonia
Tremor
Hemiballisumus
Athetosis

12. Centre of activity of autonomic nervous ?

Midbrain
Cerebrum
Hypothalamus
Pons


13. Which of the following is not true for myelinated nerve fibers?
Impulse from myelinated nerve fibers is slower than that of non myelinated fibers
Membrane currents are generated at nodes of Ranvier
Saltatory conduction of impulses is seen
Local anesthesia is possible only when the nerve is not covered by myelin sheath

14. Receptors for olfactory sensation are present in?

Lateral walls
Nasal septum
Lateral wall and nasal septum above superior concha
None of the above

15. Tremors are seen in disorders of:
Basal ganglia
Pain pathway
Pyramidal tract
Parathyroid gland

16.Voluntary movement of eyeball is controlled by:

Superior colliculus
Frontal eye field
Cerebellum
Visual cortex area

17.Unmyelinated fibers differ from myelinated nerve fibers in that they:
have increased excitability
have no nodes of Ranvier
have no power of regeneration
have no association of schwann cells

18.Breathing ceases upon destruction of the:

Cerebrum
Medulla oblongata
Hypothalamus
Cerebellum

19. The sensory receptors serving the stretch reflex are:
propriocepters
nociceptors
exteroceptors
chemoreceptors
20. In CNS myelination is carried out by:

Schwann cells
Astrocytes
Microglia
Oligodendrocytes

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