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12 Cards in this Set

  • Front
  • Back

what are the components of CN I?

Olfactory

SVA

What are the components of CN II?

Optic

SSA (S for sight)

What are the components of CN III?

Occulomotor

GSE (for extraocular muscles)

GVE (for intraocular muscles which originate from Branchial arch

What are the components of CN IV?

Trochlear

GSE (superior oblique innervation)
What are the components of CN V?

Trigeminal

GSA (general sensation for touch, pain, heat, etc. skin so somatic)

SVE (motor of masticatory muscles which arise from branchial cleft) (only V3 has this)
What are the components of CN VI?

Abducent

GSE

innervation of lateral Rectus extraoccular muscle
What are the components os CN VII?

Facial

SVE (motor for facial muscles which arise out of branchial cleft 2)
SVA (taste for front 2/3 of tongue)
GVE (glandular innervation)
GSA (proprioception of facial muscles)
What are the components of CN VIII?

Vestibulocochlear

SSA (special hearing and equilibrium somatic bc ear canal is not in branchial arch, its from a pouch and groove)

What are the components of CN IX?

Glossopharyngeal

SVE (innervation of stylopharyngeus)
SVA (taste to post 2/3 of tongue)
GVE (parotid and salivary glands)
GSA (pain and temp sensation to post 2/3 tongue and pharynx)
GVA (chemo and baro-reception from carotid bodies)
What are the components of CN X?

Vagus

SVE (motor innervation of branchiomeric muscles in pharynx)
GVE (minor salivary glands, GI and bronchiolar mucosa and heart)
SVA (scattered taste buds on epiglottis)
GVA (chemo and baroreceptors from carotid and aortic bodies)
GSA (pain and temp from lower pharynx and tympanic membrane via auricular branch)

What are the components of CN XI?

Accessory

SVE (maybe branchiometric muscles of lower pharynx)
GSE (innervation of trapezius and sternocleidomastoid)

What are the components of CN XII?

Hypoglossal

GSE (innervation of intrinsic and extrinsic muscles of tongue)