University:
Minnesota State University Moorhead
Course:
BIOL-125 | Human Anatomy and Physiology I with Lab
Academic year:

2019
Views:

168

Pages:

1
Author:

Annalise Walters

Cranial Nerve Major Functions Assessment Cranial Nerve I Olfactory Sensory Smell Cranial Nerve II Optic Sensory Vision Cranial Nerve III Oculomotor Sensory and Motor – Primarily Motor Eyelid and eyeball movement Cranial Nerve IV Trochlear Sensory and Motor – Primarily Motor Innervates superior oblique eye muscle Turns eye downward and laterally Inferior lateral movement of the eye Chewing Face and mouth touch and pain Corneal reflex Sensation of skin of the face (eyebrow, cheeks and chin) by using a wisp of cotton Chewing, biting, lateral jaw movements (move jaw side to side) Cranial Nerve V Trigeminal Cranial Nerve VI Abducens Sensory and Motor Sensory and Motor – Primarily Motor Turns eye laterally Proprioception (sensory awareness of part of the body) Cranial Nerve VII Facial Sensory and Motor Controls most facial expressions Secretion of ears and saliva Cranial Nerve VIII Vestibulocochlear (auditory) Sensory Hearing Equilibrium sensation Cranial Nerve IX Glossopharyngeal Sensory and Motor Cranial Nerve X Vagus Sensory and Motor Cranial Nerve XI Spinal Accessory Sensory and Motor – Primarily Motor Cranial Nerve XII Hypoglossal Sensory and Motor – Primarily Motor Taste Senses carotid blood pressure Muscle sense – proprioception, sensory awareness of the body Senses aortic blood pressure Slows heart rate Stimulates digestive organs Taste Controls trapezius and sternocleidomastoid controls swallowing movements Muscle sense proprioception Controls tongue movements Muscle sense proprioception Smell—coffee, cloves, peppermint Visual acuity—Snellen chart (cover eye not being examined) Test for visual fields Examine with ophthalmoscope Move eye up, down, and peripherally Test for accommodation Pupillary constriction Observe for ptosis of upper eyelid Inferior lateral eye movements Taste—anterior two thirds of tongue; sweet—sugar; salty; sour—lemon; bitter (rinse mouth between applications) Movement of forehead and mouth Raise eyebrows, show teeth, smile, and puff out cheeks Hearing, balance Weber and Rinne tests Otoscope Swallowing and phonation Taste—posterior one third of tongue; see cranial nerve VII Sensations of posterior one third of tongue, throat. Gag reflex (stimulate back of pharynx with a tongue blade) Swallowing and phonation Shoulder movement, shoulder shrug, head rotation—push against examiner’s hand Tongue movement—protrude tongue, push tongue into the cheek