INBDE (Integrated National Board Dental Examination) Practice Exam

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Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

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What muscles arise from pharyngeal arch 6?

Intrinsic muscles of larynx
Cricothyroid, levator veli palatini, pharyngeal constrictors
Stylopharyngeus
Mylohyoid and tensor tympani

The correct answer is: Intrinsic muscles of larynx

Muscles that arise from pharyngeal arch 6 are mainly responsible for innervating the intrinsic muscles of the larynx. Pharyngeal arch 6 specifically gives rise to the muscles that are innervated by the recurrent laryngeal nerve, a branch of the vagus nerve (cranial nerve X). These muscles include the intrinsic muscles of the larynx, such as the thyroarytenoid, posterior cricoarytenoid, lateral cricoarytenoid, transverse arytenoid, and oblique arytenoid muscles. It is important to note that options B, C, and D do not directly arise from pharyngeal arch 6, making them incorrect in this context.