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Which cranial nerve is affected in a Bell's Palsy?

Which cranial nerve is affected in a Bell's Palsy? Correct Answer Cranial nerve VII

Concept:-

  • Bell's Palsy:  It is a sudden episode of facial muscle weakness or paralysis. It begins suddenly and worsens over 48 hours. this is caused due to the damage of the 7th cranial nerve which is the facial nerve.
  • The facial nerve controls the muscles of facial expression and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue

Additional Information

  • Cranial nerve IX is the Glossopharyngeal nerve. It enables Swallowingit to have 3 fibers; Motor (Enables muscle movements), parasympathetic ( helps tissue and organs rest when not in use), sensory (Provides sensation, so you can detect taste, touch, and temperature.)
  • The trochlear nerve is the fourth cranial nerve (CN IV) and one of the ocular motor nerves that control eye movement.
  • The hypoglossal nerve helps to make noises with your mouth, like clicking sounds, moving substances around in your mouth, speaking. swallow.
    • Purely Sensory cranial nerves:  I, II, VIII
    • Purely Motor cranial nerves: III, IV, VI, XI, XII
    • Mixed cranial nerves: V, VII, IX, X  

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Related Questions

Which of the following cranial nerve is affected in Bell's palsy?
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