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31 Cards in this Set
- Front
- Back
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What seperates the cerebellum and the cranium?
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tentorium cerebelli
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What is housed in the anterior cranial fossa
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frontal lobes
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What is housed in the middle cranial fossa
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temporal lobes
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What is housed in the poserior cranial fossa
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cerebellum
brainstem |
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What are the major part of the ethmoid bone?
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crista galli- bony projection that is an attachment site for dural reflection/septa between the hemispheres
cribiform plate- on either side of the crista galli- very perforated because olfactory bulb sits right on top of them ant&post ethmoidal foramina- nerves and arteries run through this for communication between brain and olfactory |
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What is the attachment for the tentorium (dural reflection)
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Anterior clinoid process
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What sits in the prechiasmatic sulcus?
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optic chiasm
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What sits in the hypophyseal fossa?
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pitituary gland
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What is housed inthe petrous crest
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the inner ear and the tentorium attaches here
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What bone is a part of all three cranial fossae?
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sphenoid bone
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What runs through the superior orbital fissure?
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On the lesser wing of the sphenoid
CN3, 4, Lacrimal, frontal and nasociliary braches of opthalmic nerve, abducens, and superior opthalmic vein |
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What runs through the foramen rotundum
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Just posterior to the SOF
Maxillary Nerve V2 |
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What runs through the foramen ovale?
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Mandibular nerve V3
Accessory meningeal artery Lesser petrosal nerve |
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What runs through the foramen spinosum-
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Middle meningeal artery and vein
meningeal branch of mandibular nerve |
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What runs through the optic canal?
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Optic nerve
Opthalmic artery |
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What runs through the internal acoustic meatus?
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Facial nerve
Vestibulococlear nerve Labyrinthine artery |
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What runs through the jugular foramen?
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Inferior petrosal sinus
CN 9,10,11 Sigmoid sinus posterior meningeal artery |
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What runs through the hypoglossal canal?
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Hypoglossal nerve
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Emmissary veins run through..
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condylar canal
mastoid canal |
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What travels through the foramen magnum?
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spinal cord/medulla
spinal roots of CN XI meninges vertebral arteries ant. and post. spinal arteries |
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What are the two layers of the dura?
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Periosteal- inner aspect of the skull
-venous sinuses in this layer Meningeal layer- thicker portion |
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Which part of the meninges contains CSF and BV
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subarachnoid space
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Dural reflection between cerebral hemispheres
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Falx cerebri
Attaches to bony crest on ethmoid bone |
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Posterior dural reflection between posterior and middle cranial fossa
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Tentorium cerebelli
perpendicular to the falx cerebri |
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Dural reflection between the cerebellar hemispheres
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Falx cerebelli
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Point at which all the the dural reflection intersect
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Confluence of the sinuses
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What runs through the cavernous sinus?
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carotid aretery (twice)
oculomotor nerve trochlear nerve abducens nerve V1- opthalmic |
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Intraparenchymal hemorrhage
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stroke
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Pterion
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the area where four bones come together
the middle meningeal artery runs underneith |
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Extradural hematoma
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severing of the middle meningeal artery from skull fracture
slow progressing and decomposition |
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Artery involved in a subarachnoid hemorrhage
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cerebral artery in the subarachnoid space
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