QuestionSBA
QuestionChoice
The trigeminal nerve supplies sensation to the dermatomes of the face as well as contributing to the sensation of the external ear, but does not extend to the pharynx or larynx. Therefore it would not be responsible for voice hoarseness.
10008192
c
Trigeminal nerve
QuestionChoice
The vagus nerve is located in proximity to the thyroid and it innervates the external acoustic meatus, laryngopharynx and larynx. It regulates autonomic functions such as heart rate, respiratory rate, and digestion. Damage to the vagus nerve can cause a wide range of effects, but it is not classically associated with voice hoarseness.
10008191
b
Vagus nerve
QuestionChoice
The recurrent laryngeal nerve innervates the muscles of the larynx and the vocal cords. Its position makes it vulnerable to damage during thyroid surgery. Damage to the recurrent laryngeal nerve can lead to hoarseness and dyspnoea.
10008190
a
Recurrent laryngeal nerve
QuestionChoice
The glossopharyngeal nerve is responsible for elevating the larynx and the pharynx. It is involved in the gag reflex and also has a sensory component. It is very unlikely for this nerve to be affected by thyroid surgery and damage to it would not cause hoarseness.
10008193
d
Glossopharyngeal nerve
QuestionChoice
The hypoglossal nerve is responsible for tongue movements. It travels from the medulla to the dorsal aspect of the tongue, making it very unlikely to be affected by thyroid surgery. Damage to it would cause tongue weakness, not hoarseness of voice.
10008194
e
Hypoglossal nerve
Concept
Chapter
2693
4651
Complications of thyroid surgery
Topic
138
Ear, Nose & Throat
14185
A 36-year-old female patient attends her GP surgery with concerns that her voice is more hoarse than usual. It has been this way ever since undergoing thyroid surgery 6 months ago.

Which of the following nerves was likely damaged during the procedure?
a