Parasympathetic innervation to the submandibular and sublingual glands is carried by which branch of CN VII?

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

Prepare for the NBEO Ocular Anatomy Posterior Segment and Cranial Nerves Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Parasympathetic innervation to the submandibular and sublingual glands is carried by which branch of CN VII?

Explanation:
Parasympathetic innervation to the submandibular and sublingual glands travels with the chorda tympani, a branch of CN VII. PreG parasympathetic fibers originate in the superior salivatory nucleus and run via the chorda tympani to the submandibular ganglion, where they synapse. The postganglionic fibers then hitchhike on the lingual nerve to reach the submandibular and sublingual glands and stimulate secretion. The greater petrosal nerve, by contrast, carries fibers to the pterygopalatine ganglion for glands in the lacrimal region and nasal/palatal mucosa, not these salivary glands. Thus, the chorda tympani is responsible for the parasympathetic supply to the submandibular and sublingual glands.

Parasympathetic innervation to the submandibular and sublingual glands travels with the chorda tympani, a branch of CN VII. PreG parasympathetic fibers originate in the superior salivatory nucleus and run via the chorda tympani to the submandibular ganglion, where they synapse. The postganglionic fibers then hitchhike on the lingual nerve to reach the submandibular and sublingual glands and stimulate secretion. The greater petrosal nerve, by contrast, carries fibers to the pterygopalatine ganglion for glands in the lacrimal region and nasal/palatal mucosa, not these salivary glands. Thus, the chorda tympani is responsible for the parasympathetic supply to the submandibular and sublingual glands.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy