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21 Cards in this Set
- Front
- Back
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Bone with Intramembranous origins (8)
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-zygomatic
-maxilla -inf nasal conchae -frontal -parietals -nasals -lacrimals -palantines |
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Bone with Endochondral origins (3)
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-ethmoid
-hyoid -ear ossicles (malleus, incus, stapes) |
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Bone formed from both intramembranous and endochondral origins (5)
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-occipital
-sphenoid -vomer -mandible (condyle, coranoid) -temporals |
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Pass through Optic canal (1n, 1a)
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-Optic nerve (II)
-Ophthalmic a. |
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Pass through orbital fissure (5)
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-Oculomotor nerve (III)
-Trochlear Nerve (IV) -Opthalmic nerve (lacrimal, frontal, nasociliary) (V1) -Abducent Nerve (VI) -Superior ophthalmic vein |
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Pass through foramen rotundum
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-Maxillary N. (V2)
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Pass through foramen ovale (3)
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-Mandibular N (V3)
-Accessory Meningeal A. -Lesser petrosal N. |
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Pass through foramen spinosum (3)
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-Middle meningeal a. & v.
-meningeal branch of mandibular n. |
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Pass through Carotid canal (2)
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-Int carotid a.
-Int carotid nerve plexus |
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Pass through jugular foramen (6)
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-Inf petrosal sinus
-glossopharyngeal n. (IX) -vagus n. (X) -Accessory n. (XI) -sigmoid sinus -post meningeal a. |
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Origin from brain:
facial nerve vestibulocochlear nerve accessory nerve |
-Junction btw pons and medulla
-junction btw pons and medulla -enters through foramen magnum, exits through jugular foramen |
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Nerves that exit through the super-orbital fissure
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CN III, IV, V (V1), and VI (3-6)
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What tissue in the cranial vault contains pain fibers and what does not
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-dura does (V supratentorial, X C1-3 infra)
-brain does not |
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path of blood from inf sag sinus to venous blood flow
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-inf sag sinus -> straight sinus -> confluens -> transverse sinus -> sigmoid sinus -> int jug -> SVC
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occipital/marginal sinus
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-variable
-alternate drainage from confluence -runs allong falx cerebelli -drains into vertebral veins |
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cavernous sinuses:
location drains into contents of (5) |
-on both sides of sella turcica
-drain into sup/inf petrosal sinuses -CN3-6, int carotid a. (only V1&V2 of 5) |
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What happens when cavernous sinus becomes occluded?
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-abducens (CNVI) is free floating in middle, becomes impinged
-eye unable to abduct on one side, then would spread to other side |
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choroid plexus (4)
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-produces CSF
-highly convoluted fenestrated capillaries -surrounded by ependyma and pia mater -part of CNS ventricular system |
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CSF
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-ultra-filtrate of blood
-mainly plasma |
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CNS Ventricular system:
path of CSF (8) |
-lateral ventricles -> interventricular foramen -> 3rd ventricle -> cerebral aqueduct -> 4th ventricle -> central canal of spinal cord OR -> median foramen/lateral foramen -> subarachnoid space
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what are the CNS ventricles formed from (embryonic)
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-outgrowths of the original central canal of neural tube
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