Question
Which of the nerves given could be damaged most commonly during submandibular gland surgery?
| A. |
Hypoglossal nerve
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| B. |
Marginal mandibular nerve
|
| C. |
Lingual nerve
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| D. |
All of the above
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Show Answer
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Correct Answer » B
Explanation
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- Facial nerve (marginal mandibular branch): Ipsilateral paresis or paralysis of the muscles supplying the lower lip and chin, including depressor labii inferioris, which characteristically presents as drooping of the lower lip. This is usually temporary, lasting for 6-12 weeks.
- Lingual nerve: Immediate post-operative ipsilateral parathesia and loss of taste from the anterior two-thirds of the tongue, which is rarely permanent.
- Hypoglossal nerve: Ipsilateral paresis or paralysis of the intrinsic muscles of the tongue leading to dysarthria and deviation of tongue to side of the lesion. This nerve is rarely injured in this procedure to an extent to produce noticeable disability.
