Skull Facial Bones
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| What are the 2 divisions of the skull? How many bones each/total | show 🗑
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| show | The Calvaria (cap) & the Floor--4 bones each
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| Name the 4 Calvaria Cranial bones: | show 🗑
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| show | Ethmoid; Sphenoid; R. & L. Temporal
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| show | Diploe--inner spongy/cancelleous layer separating 2 outer plates of compact cortical bone
Has Meningeal Grooves (narrow branchlike grooves which cover the internal surface of the bones (=sm grooves)
Sulci-larger channels which lodge blood vessels(large
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| What are the 3 regions of the Floor of the Skull? How are they divided? | show 🗑
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| show | The Petrous Ridges on the Temporal Bone
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| Name the 14 Facial Bones: | show 🗑
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| Do the 2 Nasal bones articulate with the Lacrimal bones? | show 🗑
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| What bones make up the majority of the hard pallate? | show 🗑
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| What bones comprise our cheek bones? | show 🗑
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| What are the purpose of the nasal conchae? Are they considered Facial or Cranial bones? | show 🗑
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| Where are the Palantine bones located? | show 🗑
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| show | Meets with the Maxilla in the front & the Ethmoid Perpendicular Plate in the back
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| What are the classifications of sutures? | show 🗑
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| show | Joints that connect the cranial & facial bones
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| show | CORONAL--between frontal/parietal bones; SAGITTAL--top of head between 2 parietal bones; 2 SQUAMOSAL--between temporal/parietal bones R/L; LAMDOIDAL--between occipital/parietal bones
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| show | BREGMA--coronal/sagittal suture junction; LAMBDA--sagittal/lambdoidal; 2 PTERION--Anterior junction of the squamosal,parietal, & sphenoid; 2 ASTERION--Posterior junction of Squamosal: occipital, parietal, mastoid portion of temporal bone
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| What are Fontanels? How many? | show 🗑
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| show | 12 years old
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| At what age range is the skull developing? | show 🗑
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| show | Anterior (Bregma)
Posterior (Lambda)
2 Mastoid (Asterion)
2 Sphenoidal (Pterion)
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| show | Metopic--extends vertically along midline of frontal bone; 2 Mendosal--pass obliquely upward on the back of the occipital bone
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| What does it mean if an infant's fontanels are sunken in? | show 🗑
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| show | Too much cranial pressure
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| show | When sutures prematurely go away. It inhibits brain growth--may need surgery to re-open. Can cause Microcephalus
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| What is Acephalus? | show 🗑
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| show | 2 heads (siamese twins)
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| show | Big head. Can also have Hydrocephalus (water).
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| What is Hydrocephalus? | show 🗑
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| show | Small head--can be caused by craniostosis.
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| show | Deviation in the palatine bone (no bone).
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| show | Extends from the anterior frontal bone to the lesser wings of the sphenoid.
Houses the frontal lobes of cerebrum
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| Describe the Middle Cranial Fossa & what it contains: | show 🗑
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| show | A deep depression posterior to the petrous ridges.
It protects the cerebellum, pons, & medulla oblongata (where spinal cord passes).
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| What are the 6 ASPECTS of the skull? | show 🗑
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| What is morphology? | show 🗑
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| show | Mesocephalic:
Petrous Pyramids project anteriorly & medially 47° from MSP
(Petrous pyramids=thickest portion of skull --on temporal bone)
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| Describe the Bracycephalic skull: | show 🗑
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| show | Petrous pyramids project anteriorly & medially 40° from MSP. (-7 of typical) (Long from front to back; Narrow side/side; deep from vertex (crown) to base (inf. surface).
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| Why must skull morphology be considered in positioning? | show 🗑
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| Define Vomer: | show 🗑
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| show | Tear
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| Define Aveoli: | show 🗑
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| show | Flat part of bone
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| What are the 2 purposes of the Facial bones? | show 🗑
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| show | Squamosal
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| Which 2 sutural junctions are pairs? | show 🗑
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