{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/9be47df95feb41b69701ebed83791774\" frameborder=\"0\" width=\"2560\" height=\"1920\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":1920,"width":2560,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":1920,"thumbnail_width":2560,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/9be47df95feb41b69701ebed83791774-bd39ae1ebe22b7c1.gif","duration":3199.04,"title":"Cranial Nerves and Their Clinical Exams","description":"This Loom provides an overview of cranial nerves and cranial nerve nuclei, emphasizing that cranial nerves are peripheral nervous system structures even though many originate in the brain stem. It reviews the brain stem regions (midbrain, pons or basilar ponds, and medulla) and explains how cell body nuclei and axon tracks are organized in the brain stem. The lecture then walks through cranial nerve 1 and 2, including anosmia causes and how optic chiasm and lesions affect visual field loss, plus optic disc papilledema from increased intracranial pressure. It continues with practical cranial nerve exam concepts and key functions for nerves 3 and 4, and summarizes sensory and motor arcs for pupillary reflex (CN 2 sensory, CN 3 motor) and the gag reflex (CN 9 sensory, CN 10 motor)."}