The nucleus ambiguus innervates muscles to mediate which function?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Enhance your knowledge of the Lower Motor Apparatus with our Test. Prepare with our comprehensive study materials, including flashcards and multiple-choice questions, each accompanied by detailed explanations and hints. Boost your readiness for the exam!

Multiple Choice

The nucleus ambiguus innervates muscles to mediate which function?

Explanation:
The nucleus ambiguus is the brainstem motor nucleus that sends impulses to the pharyngeal and laryngeal muscles via the glossopharyngeal and vagus nerves. This makes swallowing and voice (phonation) possible, since the pharyngeal constrictors, soft palate muscles, and intrinsic laryngeal muscles rely on these pathways. It does not control the extraocular muscles needed for eye movements, the hypoglossal-controlled tongue muscles, or the facial nucleus that governs facial expression. So swallowing and phonation are the functions mediated by this nucleus.

The nucleus ambiguus is the brainstem motor nucleus that sends impulses to the pharyngeal and laryngeal muscles via the glossopharyngeal and vagus nerves. This makes swallowing and voice (phonation) possible, since the pharyngeal constrictors, soft palate muscles, and intrinsic laryngeal muscles rely on these pathways. It does not control the extraocular muscles needed for eye movements, the hypoglossal-controlled tongue muscles, or the facial nucleus that governs facial expression. So swallowing and phonation are the functions mediated by this nucleus.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy