Cranial Nerve Table Flashcards
CN I foramen?
Cribriform plate
CN II foramen?
Optic canal (foramen)
CN III foramen?
Superior orbital fissure
CN IV foramen?
Superior orbital fissure
CN V1 foramen?
Superior orbital fissure
CN V2 foramen?
Foramen rotundum
CN V3 foramen?
Foramen ovale
CN VI foramen?
Superior orbital fissure
CN VII foramen?
Internal auditory meatus
CN VIII foramen?
Internal auditory meatus
CN IX foramen?
Jugular foramen
CN X foramen?
Jugular foramen
CN XI foramen?
Foramen magnum and jugular foramen
CN XII foramen?
Hypoglossal canal
GSE
General somatic efferent
- Motor to voluntary mm.
GSA
General somatic afferent
- Sensation from skin, muscle, joints
GVE
General visceral efferent
- Motor to smooth muscle and glands
- think parasymp
GVA
General visceral afferent
- Sensation from internal organs
SVE
Special visceral efferent
- Voluntary motor to pharyngeal arch (mm. of mastication, facial expression, pharynx, some small mm. attaching to hyoid bone)
- Gill evolution (Law & Order SVE)
SVA
Special visceral afferent
- Taste and smell
SSA
Special somatic afferent
- Vision, hearing, balance (eyes and ears)
SSE
Trick question, doesn’t exist
CN I components and main structures innervated?
SVA: Olfactory nasal mucosa (smell)
CN II components and main structures innervated?
SSA: Rods and cones of retina (vision)
CN III components and main structures innervated?
GVE: (via ciliary ganglion) to sphincter pupillae and ciliary mm. (parasymp)
GSE: sup, med, and inf recti and inf oblique mm. of eye and levator palpebrae superioris m.
CN IV components and main structures innervated?
GSE: Superior oblique m.
CN V components and main structures innervated?
GSA:
V1- skin of upper part of face (upper orbit and above)
V2- skin of mid-face, upper teeth, nasal and palatal mucosa
V3- skin of lower face and jaw, floor of mouth, ant 2/3 tongue mucosa, lower teeth and gums, ear pinna and canal
SVE: Mm. of mastication, ant belly of digastric m., tensor tympani, mylohyoid, tensor palatini (1st arch mm.)
CN VI components and main structures innervated?
GSE: Lateral rectus m.
CN VII components and main structures innervated?
GVA: deep sensation from soft palate
SVA: taste buds of ant. 2/3 tongue
GSA: sensation from small part ear pinna
GVE: motor to submandibular, sublingual, lacrimal glands, glands of nasal mucosa
SVE: motor to mm. of facial expression, post belly digastric, stylohyoid, stapedius mm.
CN VIII components and main structures innervated?
SSA: organ of corti in cochlea duct. Semicircular canals, utricle and saccule
CN IX components and main structures innervated?
GVA: deep sensory to post tongue, soft palate, pharynx, mucosa of tymp cavity, post auditory tube, carotid body and sinus
SVA: Taste buds post 1/3 tongue and adajcent pharynx
GSA: Gen sensory from small part of ear pinna and canal
GVE: Parotid salivary gland (secretomotor)
SVE: Stylopharyngeal m.
CN X components and main structures innervated?
GVA: Visc sens from esophagus, trachea, pharynx, larynx, and abd viscera
SVA: Taste buds in epiglottis and glottis
GSA: Sens from small part of ear pinna, canal, and tymp membrane
GVE: thoracic and abdominal viscera
SVE: Mm. of the pharynx and larynx, levator palatini and cricothyroid
CN XI components and main structures innervated?
SVE: motor to SCM and trapezius mm.
CN XII components and main structures innervated?
GSE: Intrinsic and extrinsic mm. of the tongue (palatoglossus excepted)
