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Cranial Nerves 7-12 Hangman

 
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Cranial Nerve Type Innervates Fxns Origin Exits Skull tests for lesion
7- Facial Nerve  mixed and parasympathetic  facial muscles, middle ear, oral cavity, platysma, stylohyoid, posterior belly digastric  motor- facial expressions, inner ear. sensory- taste (ant 2/3 tongue). parasym- salivates (submandibular & sublingual glands), mucus secreting, tears (lacrimal gland)  pons  internal auditory meatus, stylomastoid foramen, petrotympanic fissure/ PCF  cannot taste/ cannot cry  
8- Vestibulocochlear  sensory  inner ear  hearing, linear acceleration (gravity), angular acceleration (head turning)  pons  Internal Auditory Meatus/ PCF  cannot hear  
9- Glossopharyngeal  mixed and parasympathetic  pharynx, neck, tongue  motor- 1 muscle for swallowing. sensory- taste and somatic sensation for post. 1/3 tongue, pharynx, tonsils, sensory to carotid body and sinus. parasymp- salivate (parotid gland)  medulla  jugular foramen/ PCF  gag reflex  
10- Vagus  mixed and parasympathetic  neck, pharynx, larynx, GI tract, palate  motor- palate, pharynx, larynx. sensory- larynx and GI. parasymp- smooth muscle of GI and gut  medulla  jugular foramen/ PCF  cannot swallow/ cannot speak  
11- Accessory  motor  trapezius, sternocleidomastoid  scapular movement, neck flexion and rotation  medulla  jugular foramen/ PCF  cannot elevate/ retract scapula  
12- Hypoglossal  motor  all intrinsic and 3 of 4 extrinsic tongue muscles  tongue movement  medulla  hypoglassal canal/ PCF  cannot protrude tongue