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The skull is made up of __ bones, including __ cranial bones and __ facial bones, and the __.
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B. Cranium
1) What does the cranium do?
2) Features of the frontal bone include the __ and __.
- encloses and protects teh brain, provides attachments for muscles and contains air-filled sinuses that reduce its weight
- supraorbital foramina/ frontal sinuses
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B. Cranium
3) __ lie at the sides of the skull and join at the __.
4) Features of the occipital bone include the __, __, and __.
- 3) parietal bones/ sagittal suture
- 4) lambdoidal suture, foramen magnum, occipital condyles
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B. Cranium
5) Features of each temporal bone include the __, __, __, __, __, and __.
6) Features of the winged sphenoid bone include the __ and __.
7) Features of the ethmoid bone include the __, __, __, __ and __.
- 5) squamosal suture, external auditory meatus, mandibular, fossae, mastoid process, styloid process, zygomatic process
- 6) sella turcica, sphenoidal sinuses
- 7) cribriform plates, a perpendicular plate, superior and middle nasal conchae, ethmoidal sinuses, crista galli
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C. Facial Skeleton
1) The __ faciable bones and __ form the basic face and provide __ for __ of __.
2) What do the maxillae do?
- 1) 13 immovable/ mandible/ attachments/ muscles/ mastication/ expression
- 2) form the upper jaw, hard palate, floor of the orbits, sides of the nasal cavity, house the upper teeth and contain large maxillary sinuses
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C. Facial Skeleton
3) What are palatine bones?
4) What zygomatic bones do?
- 3) L-Shaped bones located behind the maxillae that form the floor of the nasal cavity and hard palate
- 4) make up the cheekbones and join with the temporal bones to form the zygomatic arches
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C. Facal Skeleton
5) Whta do the lacrimal bones form?
6) What do nasal bones form?
7) What does the vomer make up?
- 5) form part of the medial walls of the orbit
- 6) form the bridge of the nose
- 7) a portion of the nasal septum
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C. Facial Skeleton
8) Describe inferior nasal conchae.
9) WHat does the mandible do?
- 8) fragile, scroll-shaped bones that support mucous membranes within the nasal cavity
- 9) (lower jawbone) supports the lower teeth and includes a mandibular condyle, coronoid process, and alveolar arch
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D. Infantile Skull
1) Explain the infantile skull.
2) What are some other features?
- 1) Is incompletely developed and features fontales, or soft spots, to aid passage through the birth canal
- 2) small face with prominent forehead and large orbits
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