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44 Cards in this Set
- Front
- Back
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2 layers of Dura mater?
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endosteal layer & meningeal layer
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4 folds of meningeal layer?
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falx cerebri
falx cerebelli tentorium cerebelli sellae diaphragm |
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where does the falx cerebri attach anteriorly?
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crista galli of ethmoid bone
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what does the tentorium cerebelli separate?
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occipital lobes of brain from cerebellum
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anterior, posterior, & lateral attachments of tentorium cerebelli?
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Anterior - anterior - anterior clinoid processes (lesser wing of sphenoid)
Posterior - occipital bone at transverse sinus Laterla - petrous ridge of temporal bone |
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tentorial notch?
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wraps around the brainstem
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diaphragm sellae?
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connects 2 anterior parts of tentorium cerebelli; forms roof of sella turcica
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in what structure is the falx cerebri found?
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longitudinal fissure
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path of superior saggital sinus?
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along superior border of falx cereberi, ends around occipital protuberance, draining into confluence of the sinuses - usually drains into right transverse sinus
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drainage of inferior saggital sinus?
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drains into straight sinus
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where is the straight sinus?
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at junction of falx cerebri and tentorium cerebelli
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drainage of straight sinus?
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confluence of sinuses - usually left transverse sinus
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transverse sinus?
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where tentorium cerebelli and occipital bone attach; drains into sigmoid sinus
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job of superior petrosal sinus?
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connects cavernous sinus to junction of transverse sinus and sigmoid sinus
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where is the cavernous sinus?
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on each side of the sella turcica
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job of inferior petrosal sinus?
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connect cavernous sinus to internal jugular vein
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what drains into the sigmoid sinus?
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transverse sinus and superior petrosal sinus
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what sinuses drains into the internal jugular vein?
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sigmoid sinus and inferior petrosal sinus
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great cerebral vein of Galen?
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drains the choroid plexus and drains to straight sinus
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6 major structures in cavernous sinus?
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Internal Carotid artery
CN3(goes through superior orbital fissure CN4 (trochlear)(goes through superior orbital fissure VI division of CN5 - opthalmic division (goes through superior orbital fissure) VII division of CN5 - maxillary nerve (goes through foramen rotundum) CN6 - Abducens nerve |
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2 structures completely surrounded by cavernous sinus?
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Internal carotid & CN6
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what does the cavernous sinus drain into?
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superior/inferior petrosal sinuses
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inferior connection of cavernous sinus?
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pterygoid plexus of veins
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what goes through inferior orbital fissure?
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connections between pterygoid plexus of veins & cavernous sinus
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drainage of the upper 2/3 of the face?
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supraorbital, superior opthalmic & inferior opthalmic to cavernous sinus
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function of arachnoid granulation
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drain cerebrospinal fluid to blood circulation`
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nerve associated with telencephalon?
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olfactory nerve attached to frontal lobe
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components of diencephalon?
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pituitary & pineal gland; optic nerve
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nerves from mesenchephalon?
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CN3 & CN4
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components of metencephalon?
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pons & cerebellum
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which nerve is found at pons?
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CN5
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pontomedullary junction?
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CN6
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pontocerebellar angle?
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CN7 & CN8 exit
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where is the basilar plexus?
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clivus of occipital bone
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structure between superior cerebellar and posterior cerebral artery?
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occulomotor nerve
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Where does the 5th nerve come off?
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on the side of the middle of the pons
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What is CN6 and where does it come off?
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Abducens; pontomedullary junction
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2 nerves that go into internal auditory meatus?
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facial nerve & vestibulocochlear nerve
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Where do CN9, 10, & 11 come from?
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sulcus posterior to olive of medulla
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Where does CN12 come from?
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infront of olive of medulla
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Where do CN9, CN10, and CN11 travel through?
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jugular foramen
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branches of vertebral artery?
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anterior/posterior spinal artery & posterior inferior cerebellal
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5 branches of basilar artery?
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superior cerebellar, posterior cerebral, pontine branches, anterior inferior cerebellar, & labyrinthine artery
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4 branches of internal carotid?
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ophthalmic artery, posterior communicating artery, anterior cerebral, middle cerebral
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