How to Perform a Cranial Nerve Exam – Quick & Easy Guide! 🧑⚕️👅
🎒FREE Resource Package http://lectur.io/resourcepackage ► Sign up here and start your FREE 7-Day Trial: http://lectur.io/freetrialmed ► If you’re a medical educator or faculty member, visit: http://lectur.io/medytb2u 🟢 Lecturio Medical is your all-in-one medical school study companion! With our easy-to-follow videos, exam replicating clinical case questions and our comprehensive medical concept pages you will be best prepared for all your exams. Create your FREE account now! http://lectur.io/freecontentyt ► Keep learning about Anatomy: http://lectur.io/anatomy ► CHAPTERS: 00:00 Facial Nerve Overview and Tests 01:55 Vestibulocochlear Nerve Overview and Tests 10:17 Glossopharyngeal and Vagus Nerves 11:29 Testing the Accessory Nerve 12:08 Testing the Hypoglossal Nerve ► In this comprehensive video, we guide you through the cranial nerve examination, starting with the 7th cranial nerve, or facial nerve. This nerve is essential for facial expressions and some sensory functions. To assess it, we test key movements such as raising the eyebrows, tightly closing the eyes, and smiling. These tests help differentiate between a central lesion (e.g., stroke) and a peripheral lesion (e.g., Bell's palsy). In stroke cases, only the lower face is affected, sparing the forehead, while Bell's palsy causes weakness across the entire side of the face. 🧠😊 The video then moves on to the 8th cranial nerve, known as the vestibulocochlear nerve, which plays a role in hearing and balance. Hearing is assessed using simple tests, like detecting soft sounds (e.g., finger rubbing). If there’s suspected hearing loss, we conduct the Weber and Rinne tests to determine whether the issue is conductive (e.g., earwax obstruction) or sensorineural (e.g., damage to the inner ear or nerve). 🎧👂 To evaluate the vestibular function of the 8th nerve, we perform tests related to balance, including the Dix-Hallpike maneuver, used for diagnosing benign paroxysmal positional vertigo (BPPV), a condition where displaced inner ear crystals cause dizziness. Additionally, we demonstrate the head impulse test to distinguish between vestibular dysfunction and more serious causes, such as a stroke. ⚖️🔄 Next, we assess the 9th (glossopharyngeal) and 10th (vagus) cranial nerves, which are involved in swallowing and palate elevation. This part of the exam includes checking for a gag reflex and observing symmetry in the soft palate’s movement. We also demonstrate the examination of the accessory nerve (11th cranial nerve), which controls the sternocleidomastoid and trapezius muscles, by testing the patient’s ability to turn their head and shrug their shoulders. 🦴💪 Finally, the video covers the hypoglossal nerve (12th cranial nerve), responsible for tongue movements. We explain how to identify lesions based on whether the tongue deviates to one side. 🗣️👅 By the end of this guide, you’ll have the knowledge to accurately perform each step of the cranial nerve exam. Watch now to strengthen your skills in conducting these essential clinical assessments! 🔍🧑⚕️ ► THE PROF: Stephen Holt attended Columbia University’s College of Physicians and Surgeons and subsequently completed his residency training and Chief Residency at Yale's Primary Care Internal Medicine Residency Program before joining the program as an Assistant Professor. ► RELATED VIDEOS - If you liked this video and need some more information about the subject, you’ll probably want to check the following videos out: • Cranial Nerves I–VI: Overview & Funct... https://studio.youtube.com/video/xgNb... • The Neuroanatomy of a Stroke: Stroke ... ► INSTALL our free Lecturio app iTunes Store: https://app.adjust.com/z21zrf Play Store: https://app.adjust.com/b01fak ► LET’S CONNECT: • Facebook: / lecturio.medical.education.videos • Instagram: / lecturio_medical_videos • Pinterest: https://www.pinterest.de/lecturiomedical • LinkedIn: / lecturio-medical Learn more about Lecturio Medical 🩺 http://lectur.io/freecontentyt Disclaimer: Lecturio offers educational content for healthcare students to prepare for exams and/or to review knowledge gained at a Medical School. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment suggestions. Our resources are strictly for educational purposes. Always consult healthcare professionals for medical concerns.