functions of the CN Flashcards
olfactory
sensory
smell
innervates - olfactory epithelium via olfactory bulb
occipital
sensory
vision
innervate retina
oculomotor
sensory PNS
innervate: superior, inferior and middle rectus, inferior oblique levator palpebrae muscles. pupillary constrictor and ciliary muscle of the eyeball via the ciliary ganglion
pupillary constriction - PNS
accommodation of the lens for near vision -PNS
eyelid opening, movement of the eyeball
trochlear
motor
innervates superior oblique muscle
eye movement
trigeminal
sensory and motor
innervates the scalp, cornea, nasal and oral cavities, cranial dura mater, muscles of mastication, tensor, tympani muscle
general sensory nerve of the head and innervates muscles that move the lower jaw
somatosensation of first 2/3 tongue. tension on tympanic membrane
abducens
motor
innervate lateral rectus muscle in orbit
eye movement
facial
sensory, motor PNS
sensory to the external acoustic meatus and deeper parts of the auricle
taste - anterior 2/3 tongue
PNS innervation - secretomotor activity in lacrimal gland, submandibular and sublingual salivary glands via pterygopalatine ganglia and glands in mucous membrane of nasal cavity and hard and soft palettes
innervate muscles of the face
tension on bones of middle ear
vestibulocochlear nerve
vestibular - balance
cochlear - hearing
glossopharyngeal
sensory, motor PNS
innervates pharynx, posterior 1/3 tongue, eustachian tube of middle ear, carotid body and sinus, stylopharyngeus muscle and parotid gland via otic ganglion
sensory from carotid body and sinus
taste
pns - secretion in parotid salivary gland
sensory from posterior 1/3 tongue, palatine tonsils, oropharynx, mucosa of the middle ear, pharyngotymapanic tube, mastoid air cells
innervate muscle derived from the 3rd pharyngeal arch
chemo and baroreception
swallowing
vagus
sensory, motor PNS
innervates: Pharynx, larynx, oesophagus, external ear
Aortic bodies, aortic arch
Thoracic & abdominal viscera
Soft palate, pharynx, larynx, upper pesophagus
Thoracic and abdominal viscera
many func
taste to epiglottis
swallowing
talking and cough
Chemo- & baroreception Visceral sensation
Speech, swallowing, Control of CVS, respiratory and GI tracts
accessory
motor
innervate SCM and trapezius muscles
shoulder and head turning
hypoglossal
motor
innervate hypoglossus, geniglossus, styloglossus muscles and all intrinsic and extrinsic muscles of tongue
movement of the tongue
video
https://www.youtube.com/watch?v=FtJtYMRVw7A
