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ļ½   Primary function: special sensory (vision)
ļ½   Origin: axons of retinal cells
ļ½   Pass through: optic canal (ant cranial fossa)
ļ½   Destination: diencephalon through optic
    chiasm
Retina ļƒ optic nerve ļƒ optic chiasma ļƒ  optic

tract ļƒ lat geniculate body ļƒ optic radiation ļƒ 

visual area of occipital lobe
ļ½   Primary function: motor (eye movements)
ļ½   Origin: mesencephalon
ļ½   Pass through: superior orbital fissure
ļ½   Destination:
    ā—¦ Somatic motor : superior, inferior and medial
      rectus, inferior oblique, and levator palpebrae
      superioris muscle.
    ā—¦ Visceral motor: intrinsic eye muscles
ļ½   GSE: extra ocular muscles
ļ½   GVE: intra ocular muscles for contraction of
    pupil and accomodation
ļ½   GSA: extra ocular muscles
ā€¢PTOSIS
ā€¢LATERAL SQUINT
ā€¢PUPILLARY DILATATION
ā€¢LOSS OF ACCOMODATION
ā€¢DIPLOPIA

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cranial nerves 2 and 3

  • 1.
  • 2.
  • 3. ļ½ Primary function: special sensory (vision) ļ½ Origin: axons of retinal cells ļ½ Pass through: optic canal (ant cranial fossa) ļ½ Destination: diencephalon through optic chiasm
  • 4.
  • 5.
  • 6. Retina ļƒ optic nerve ļƒ optic chiasma ļƒ  optic tract ļƒ lat geniculate body ļƒ optic radiation ļƒ  visual area of occipital lobe
  • 7.
  • 8. ļ½ Primary function: motor (eye movements) ļ½ Origin: mesencephalon ļ½ Pass through: superior orbital fissure ļ½ Destination: ā—¦ Somatic motor : superior, inferior and medial rectus, inferior oblique, and levator palpebrae superioris muscle. ā—¦ Visceral motor: intrinsic eye muscles
  • 9. ļ½ GSE: extra ocular muscles ļ½ GVE: intra ocular muscles for contraction of pupil and accomodation ļ½ GSA: extra ocular muscles
  • 10.
  • 11.
  • 12.