Certified Rehabilitation Registered Nurse (CRRN) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the CRRN Exam with practice quizzes that include flashcards, hints, and explanations. Ensure success by testing your rehabilitation nursing knowledge with confidence-building tools and resources.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


Which cranial nerves are primarily involved in the process of eating?

  1. Optic, olfactory, and facial

  2. Glossopharyngeal, hypoglossal, and vagus

  3. Trigeminal, vestibulocochlear, and spinal accessory

  4. Mandibular, abducens, and facial

The correct answer is: Glossopharyngeal, hypoglossal, and vagus

The glossopharyngeal, hypoglossal, and vagus nerves play crucial roles in the process of eating. The glossopharyngeal nerve is responsible for taste sensation from the posterior one-third of the tongue and also aids in swallowing. The hypoglossal nerve controls the muscles of the tongue, which are essential for manipulating food and facilitating swallowing. The vagus nerve includes branches that innervate the muscles of the pharynx and larynx, contributing to the swallowing reflex and regulating physiological processes involved in digestion. Understanding these functions highlights the importance of these cranial nerves in the coordinated actions necessary for eating, from the sensory input of taste to the motor functions of swallowing.