Cranial Nerves Flashcards
CNII?
Cranial exit?
Modality?
Optic
Optic Canal
Special sense-vision
CNI?
Cranial exit?
Modality?
Olfactory
Cribiform Plate
Special sense-smell
CNIII?
Cranial exit?
Modality?
Occulomotor
Superior orbital fissure
Somatic motor- eye muscle for movements except SO4 and LR6
Visceral motor- ciliary muscle that constrict pupil
CNIV?
Cranial exit?
Modality?
Trochlear
superior orbital fissure
somatic motor- superior oblique eye muscle for inferolateral movement
CNV?
Cranial exit?
Modality?
Trigeminal -Opthalmic-superior orbital fissure -Maxillary-foramen rotundum -mandibular-foramen ovale Somatic sensory of the three regions of the anterior skull/face Branchial motor-muscles of mastication
CNVI?
Cranial exit?
Modality?
abducent
superior orbital fissure
somatic motor- eye muscle lateral rectus for lateral eye movement
CNVII?
Cranial exit?
Facial-internal acoustic meatus
- temporal
- zygomatic
- buccal
- mandibular
- cervical
CNVIII?
Cranial exit?
Modality?
Vestibulocochlear
internal acoustic meatus
special sense- hearing and balance
CNIX?
Cranial exit?
Modality?
Glosophngeal
jugular foramen
Branchial motor- muscle of the stylopharyngeus
General sensory- skin of tongue, ear, internal tympanic membrane
special sense- taste on 2/3 posterior tongue
visceral motor-parotid gland
visceral sense-carotid body (sub conscious)
CNX?
Cranial exit?
Modality?
Vagus
jugular foramen
Branchial motor-muscles of pharynx, larynx, and tongue
Visceral motor- smooth muscle in GI tract, viscera of thoracic and abdominal cavities
Visceral sensory- stretch receptors
Special sense- taste from palate and epiglottis
General sense- skin on back of ear, external tympanic, pharynx
CNXI?
Cranial exit?
Modality?
Spinal Accessory
Jugular foramen
Branchial motor-sternocleiodomastoid and trapezius
CNXII?
Cranial exit?
Modality?
Hypoglossal
Hypoglossal canal
Somatic motor- intrinsic and extrinsic muscles of the tounge