Cranial Nerves Flashcards
CN I
olfactory n.
CN II
optic n.
CN III
oculomotor n.
CN IV
trochlear n.
CN V
trigeminal n.
Division I
ophthalmic n.
Division II
maxillary n.
Division III
mandibular n.
CN VI
abducens n.
CN VII
facial n.
CN VIII
vestibulocochlear n.
CN IX
glossopharyngeal n.
CN X
vagus n.
CN XI
accessory n.
CN XII
hypoglossal n.
What is the pneumonic to remember which nerves are sensory, motor or both?
Some say marry money, but my brother says big brains matter most.
Exit- CN I / olfactory n.
Cribriform plate
Modality- CN I / olfactory n.
Sensory
To- CN I / olfactory n.
Smell
Exit- CN II / optic n.
Optic foramen
Modality- CN II / optic n.
Sensory
To- CN II / optic n.
Vision
Exit- CN III / oculomotor n.
Superior orbital fissure (3, 4, 5-1, 6)
Modality- CN III / oculomotor n.
Motor
To- CN III / oculomotor n.
Muscles of the eye except superior oblique m. and lateral rectus m.
Exit- CN IV / trochlear n.
Superior orbital fissure
Modality- CN IV / trochlear n.
Motor
To- CN IV / trochlear n.
Superior oblique m.
Exit- CN V1 / ophthalmic n.
Superior orbital fissure
Modality- CN V1 / ophthalmic n.
Sensory
To- CN V1 / ophthalmic n.
Upper face and eye region
Exit- CN V2 / maxillary n.
Foramen rotundum
Modality- CN V2 / maxillary n.
Sensory
To- CN V2 / maxillary n.
Nose, nasal cavity and upper teeth
Exit- CN V3 / mandibular n.
Foramen ovale
Modality- CN V3 / mandibular n.
Mixed
To- CN V3 / mandibular n.
Sensory- lower face, tongue and lower teeth. Motor- muscles of mastication
Exit - CN VI / abducens n.
Superior orbital fissure
Modality- CN VI / abducens n.
Motor
To CN VI / abducens n.
Lateral rectus m.
Exit- CN VII / facial n.
Travels through the internal acoustic meatus and exits the skull through the stylomastoid foramen
Modality- CN VII / facial n.
Mixed
To- CN VII / facial n.
Sensory- anterior ⅔ of tongue. Motor- muscles of facial expression.
Exit- CN VIII / vestibulocochlear n.
Internal acoustic meatus
Modality- CN VIII / vestibulocochlear n.
Sensory
To- CN VIII / vestibulocochlear n.
Cochlea and semicircular canals for hearing and equlibrium
Exit- CN IX / glossopharyngeal n.
jugular foramen
Modality- CN IX / glossopharyngeal n.
Mixed
To- CN IX / glossopharyngeal n.
Taste and general sensory information to the posterior ⅓ of the tongue. Sensory to the pharynx. Motor to one muscle in the pharynx.
Exit- CN X / vagus n.
jugular foramen
Modality- CN X / vagus n.
Mixed
To- CN X / vagus n.
Sensory- viscera of the neck, thorax and abdomen. Motor- viscera of the neck, thorax and abdomen.
Exit- CN XI / accessory n.
jugular foramen
Modality- CN XI / accessory n.
motor
To- CN XI / accessory n.
Trapezius and sternocleidomastoid mm.
Exit- CN XII / hypoglossal n.
Hypoglossal canal
Modality- CN XII / hypoglossal n.
Motor
To- CN XII / hypoglossal n.
Muscles of the tongue
