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HOME » HUMAN ANATOMY » SYSTEMIC ANATOMY » SKELETAL SYSTEM » SKULL » ETHMOID BONE » ETHMOID BONE - ANATOMICAL FEATURES
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ETHMOID BONE - ANATOMICAL FEATURES

  • cribriform plate = horizontal plate = lamina cribrosa = horizontal lamina
  • crista galli
  • ala
  • contents
  • air sinus
  • groove for olfactory nerves to roof of  nasal cavity
  • foramina for olfactory nerves to upper part of nasal septum
  • foramina for olfactory nerves to superior nasal concha
  • fissure for process of dura mater
  • notch/foramen for nasociliary nerve
  • groove for nasociliary nerve
  • ethmoidal labyrinth = lateral mass
  • lateral plate
  • medial plate
  • opening for ethmoidal cells
  • contents
  • ethmoidal cells
  • anterior
  • middle
  • posterior
  • superior surface = upper surface
  • ethmoidal cells
  • groove for anterior ethmoidal canal
  • groove for posterior ethmoidal canal
  • posterior surface
  • ethmoidal cells
  • lateral surface = orbital plate
  • lamina papyracea = os planum
  • ethmoidal cells
  • uncinate process
  • medial surface
  • lamella
  • middle nasal concha
  • grooves for branches of olfactory nerves to mucous membrane covering superior nasal concha
  • superior meatus
  • opening to posterior ethmoidal cells
  • superior nasal concha
  • middle nasal concha
  • opening to middle ethmoidal cells
  • infundibulum
  • perpendicular plate = lamina perpendicularis = vertical plate
  • anterior border
  • posterior border
  • inferior border
  • grooves and canals for filaments of olfactory nerves
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