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7 Cards in this Set

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Boundaries of posterior cranial fossa?
extends from petrous ridge to back of skull
Name the foramina of the posterior cranial fossa. (there are 5)
foramen magnum
jugular foramen
hypoglossal canal
condylar canal
mastoid foramen
contents of FORAMEN MAGNUM
medulla & meninges
vertebral aa.
CN XI/spinal accessory
dural vv.
ant & post spinal aa.
contents of JUGULAR FORAMEN
CN IX/glossopharyngeal
CN X/vagus
CN XI/spinal accessory

-sup. bulb of IJV
-inf petrosal & sigmoid sinuses
-mening brs. of ascending pharyng. & occip aa.
contents of HYPOGLOSSAL CANAL
CN XII/hypoglossal
contents of CONDYLAR CANAL
emissary v. from sigmoid sinus to vertebral vv. of neck
contents of MASTOID FORAMEN
-mastoid emissary v. from sigmoid sinus
-meningeal br. of occip a.