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OCCIPITAL BONE - ANATOMICAL FEATURES

  • foramen magnum
  • squamous part = squama
  • external surface
  • external occipital protuberance = inion
  • external occipital crest = median nuchal line
  • planum occipitale = occipital plane
  • highest nuchal line
  • planum nuchale = nuchal plane
  • superior nuchal line
  • inferior nuchal line
  • internal surface
  • cruciate eminence
  • internal occipital protuberance
  • depression for confluence of the sinuses
  • internal occipital crest
  • vermian fossa = fossa for cerebellar vermis
  • fossae for cerebral occipital lobes
  • fossae for cerebellar hemispheres
  • sagittal sulcus
  • grooves for transverse sinuses
  • groove for occipital sinus
  • basilar part
  • lower surface = inferior surface = external surface
  • pharyngeal tubercle
  • upper surface = superior surface = internal surface
  • groove for medulla oblongata
  • groove for inferior petrosal sinuses = inferior petrosal groove
  • lateral parts = condylar parts
  • inferior surface = lower surface = external surface
  • occipital condyle
  • articular surface of occipital condyle
  • tubercle for alar ligament
  • condylar fossa = condyloid fossa
  • condylar canal = condyloid canal
  • hypoglossal canal = anterior condyloid foramen
  • jugular process
  • jugular notch
  • intrajugular process = spicule
  • paramastoid process
  • superior surface = upper surface = internal surface
  • jugular process
  • jugular tubercle
  • groove for glossopharyngeal, vagus, accessory nerves (cranial nerves 9, 10, 11)
  • groove for terminal part of transverse sinus
  • orifice of condyloid canal
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