The hypoglossal nerve provides______________?
Correct answer: B. Motor innervation to all of the muscles of the tongue both intrinsic and extrinsic
- A. Motor innervation to styloglossus and hyoglossus muscles only
- B. Motor innervation to all of the muscles of the tongue both intrinsic and extrinsic
- C. Sensory innervation to the posterior third of the tongue
- D. Sensory innervation to the anterior two - thirds of the tongue
Explanation
The hypoglossal nerve supplies motor fibres to all intrinsic and extrinsic tongue muscles except palatoglossus. Palatoglossus is supplied by the vagus nerve through the pharyngeal plexus.
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