Cranial Nerves Flashcards
(22 cards)
Sensory/motor/both Acrostic sentence
Some say marry money, but my brother says big brains matter most.
V
trigeminal nerve- Both sensory and motor
important in speech
sensory info from upper face, forehead, scalp, to CNS
mandible elevation for mastication
mandible sensory from lower teeth, hums and lips, portions of the tongue to CNS
sensory from upper face, forehead, scalp to CNS
Maxillary: sensory from teeth, upper lip, buccal, nasal cavities, sides of face to CNS
VII
facial nerve- mixed sensory-motor
motor infor to the face
sensory taste-anterior 2/3 of tongue
function: facial expressions and taste.
temporal, zygomatic- motor info to the muscles of the upper face, bilaterally innervated
buccal, mandibular- motor info to the muscles of the lower face, unilaterally inntervated.
important for speech.
bilateral innervation
recieves motor plans from both contralateral and ipsilateral hemispheres.
protective redundancy
bilateral and unilateral are in CN VII facial nerve
unilateral innervation
recieve motor plans from the contralateral hemisphere of motormovement. there is no protextive redun
bilateral and unilateral are in CN VII facial nerve
IX
glosso pharyngeal- both sensory and motor functions, mixed
sensory (taste) from the posterior 1/3 of the tongue
motor: to muscles of pharynx for swallowing and parotid gland for salavia
gag reflex, taste and swallowing
important for speech.
X
Vagus nerve- Both sensory and motor
innervates muscles of the soft palate, pharynx, and larynx through various branches.
muscles for swallowing and elevates velum for non-nasal sounds.
vocal folds adduction
pharyngeal plexus and superior laryngal nerve
important for speech
CN XI
acessory nerve- motor function
cranial component-acessory of vadus
spinal component innervates muscles of the shoulders- helps to keep your head up. supportive functions
important for speech
CN XII
hypoglossal nerve- motor functions
innervates intrinsic muscles of the tongue (fine motor)
innervates most extrinsic muscles of the tongue (gross motor)
important for speech.
I
olafactory- smell- sensory
II
optic- sight- sensory
III
oculomotor- eye movements (pupil, upper eyelid)- motor
IV
trochlear- eye movements (downward gaze), motor
VI
Abducens- eyemovements (abduction or lateral movements)- motor
VIII
Vestibulocochlear- hearing/sense of balance- both (mixed) sensory//motor
CN important for speech
V, VII, IX, X, XII, XII (5,7,9,10,11,12)
CN V- Trigeminal nerve sensory/motor/ both and function
both- mandibular elevation andsensroy info, maxillary sensory, and upper face and for head scalp to CNS. mastication and chewing!
CN VII- facial nerve sensory/moto/both and function
Both sensory and motor, facial expression but more specifically tast for the anterior 2/3 of the tongue.
CN IX- glossopharyngeal sensory/moto/both and function
Both sensory and motor. sensory-taste for posterior 1/3 of tongue. also important for swallowing, gag reflex. motor to muscles of pharynx for swallowing and parotid gland.
CN X- vagus nerve sensory/motor/both and function
Both sensory and motor. innervates muscles of the soft palate, pharynx and larynx through various branches. velar elevation, connected to IX innervates muscles for swallowing, vocal folds adduction
CN XII acessory sensory/motor/or both and function
Motor, keep head up, supportive functions head and should muscle support.
XII- hypoglossal nerve sensor, motor or both and function
Motor, innervates intrinsic muscles of the tongue (fine motor movements and extrinsim muscles of the tongue gross motor movements.
