Different nerves are marked in the given diagram. Which of the following nerve supplies posterior cricoarytenoid?
Correct Answer: C
Description: CHOICE EXPLANATION & ELIMINATION REASON 1 A - Cervical sympathetic chain 2 B - Vagus nerve 3 C- Recurrent laryngeal nerve 4 D - Phrenic nerve Recurrent laryngeal nerve supplies posterior cricoarytenoid muscle - abductor of vocal cord Recurrent laryngeal nerve supplies all muscles of larynx except cricothyroid. It also gives sensory fibers to larynx below vocal cord. External branch of Superior laryngeal nerve supplies Cricothyroid
Category:
Anatomy
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