Osteology

• • Ethmoid

    • Perpendicular plate

    • Cribriform plate

    • Crista galli

    • Orbital plate

    • Middle nasal concha

    • Superior nasal concha

    • Anterior ethmoidal foramen

    • Posterior ethmoidal foramen

  • Lacrimal

    • Lacrimal groove

    • Posterior lacrimal crest

  • Frontal

    • Lacrimal fossa

    • Trochlear fovea

  • Zygomatic

    • Orbital surface

  • Maxilla

    • Lacrimal groove

  • Sphenoid

    • Optic canal

    • Superior orbital fissure

    • Inferior orbital fissure

Eyeball, eyelid, & lacrimal apparatus

• • Tarso-fascial layer of eyelids

    • Orbital septum

    • Superior tarsus (tarsal plate)

    • Inferior tarsus (tarsal plate)

    • Tarsal glands

  • Lateral angle (canthus) of eye

  • Medial angle (canthus) of eye

  • Lateral palpebral ligament

  • Medial palpebral ligament

  • Lacrimal apparatus

    • Lacrimal gland

    • Lacrimal canaliculi

    • Lacrimal papilla

    • Lacrimal puncta

    • Lacrimal sac

    • Lacrimal lake

    • Lacrimal caruncle

    • Nasolacrimal duct

  • Conjunctiva

    • Palpebral conjunctiva

    • Bulbar conjunctiva

    • Conjunctival sac

    • Superior conjunctival fornix

    • Inferior conjunctival fornix

  • Fibrous layer of eyeball

    • Sclera

    • Cornea

  • Vascular layer of eyeball

    • Iris

      • Pupil

Nerves

• • Optic n. (CN II)

  • Oculomotor (CN III)

    • Superior division (branch)

    • Inferior division (branch)

    • Branch to ciliary ganglion

  • Ciliary ganglion

    • Short ciliary nn.

  • Trochlear n. (CN IV)

  • Trigeminal n. (CN V)

    • Ophthalmic n. (V1)

      • Lacrimal n.

        • Communicating br. with zygomatic n.

      • Frontal n.

        • Supratrochlear n.

        • Supra-orbital n.

          • Lateral br.

          • Medial br.

        • Nasociliary n.

          • Long ciliary nn.

          • Posterior ethmoidal n.

          • Anterior ethmoidal n.

            • External nasal n.

          • Infratrochlear n.

    • Maxillary n. (V2)

    • Mandibular n. (V3)

  • Abducens n. (CN VI)

Vasculature

• • Superior ophthalmic v.

  • Inferior ophthalmic v.

  • Internal carotid a.

    • Ophthalmic a.

      • Central retinal a.

      • Anterior ethmoidal a.

      • Posterior ethmoidal a.

  • Cavernous sinus

Muscles

• • Orbicularis oculi m.

    • Palpebral part

    • Orbital part

  • Extra-ocular mm.

    • Levator palpebrae superioris m.

      • Superior tarsal m.

    • Common anular tendon (common tendinous ring)

    • Superior rectus m.

    • Inferior rectus m.

    • Medial rectus m.

    • Lateral rectus m.

    • Superior oblique m.

      • Trochlea

    • Inferior oblique m.

Lateral nasal wall:

• • Nares

  • Nasal vestibule

  • Choanae

  • Spheno-ethmoidal recess

    • Opening of sphenoidal sinus

  • Superior nasal concha

  • Superior nasal meatus

    • Opening of posterior ethmoidal cells

  • Middle nasal concha

  • Middle nasal meatus

    • Ethmoidal bulla

    • Opening of middle ethmoidal cells

    • Ethmoidal infundibulum

      • Opening of frontonasal duct

    • Semilunar hiatus

      • Opening of anterior ethmoidal cells

      • Opening of maxillary sinus

  • Inferior nasal concha

  • Inferior nasal meatus

    • Opening of nasolacrimal duct