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5 Cards in this Set
- Front
- Back
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Movement of the mandible
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Elevation - closing of the mouth
Depression - opening the mouth Protrusion - thrusting chin forward Retrusion - pulling chin back |
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The internal base of the brain is divided into x 3 large fossae
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1) Anterior Cranial Fossa
2) Middle Cranial Fossa 3) Posterior Cranial Fossa |
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1) Anterior Cranial Fossa
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shallowest of the cranial fossae
a) from frontal bone to lesser wing of sphenoid bone b) overlies orbits c) divided at midline by cristi galli and cribiform plate portions of the ethmoid bone d) contains frontal lobes of cerebrum |
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2) Middle Cranial Fossa
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a) from lesser wings of sphenoid bone to petrous ridge of temporal bone
b) divided at midline by sella turcica (bony structure that forms walls of hypophyseal fosa, the space that in life is occupied by the pituitary (hypophyseal) gland) c) contains temporal lobes of cerebrum |
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3) Posterior Cranial Fossa
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deepest of the cranial fossae
a) from petrous ridge of temporal bone to occipital bone b) divided at midline by foramen magnum c) contains cerebellum |
