Dental Neuroanatomy Review Phase 1: Ventricles, CNs, Vessels, ANS This quiz does not count but you are responsible for knowing all of this material. Review! Dental Neuroanatomy 2012 Interstitial fluid in the brain is returned to the vascular system by 1. Arachnoid Granulations 2. Choroid Plexus Cells 3. Ependymal Cells 4. Lateral Apertures of the ventricles 0 0 0 0 0

...... ics n rtu 5. Lymphatics e Gra al Cell Ap m l ymphat d Plexus. y ra L noid i d e h n t c oro e a La Ch Ep Ar Arachnoid Granulations Sinuses drain into the internal jugular vein (Image from Dave Morton) CSF is most often obstructed in which region?

1. A 2. B 3. C 4. D

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. A 4. D 1 2. B 3. C The arrow is pointing to

1. Lateral ventricle 2. Cerebral aqueduct 0 0 0 0 0 0 0 . . . . a ...... g ri d tri... tric.. agn na nt ue n M e q ntricl.. e rai l v a Ve na d 3. Third Ventricle l r s ra te ird te a h urth V is nou L rebra T Lateral Ven e Fo C 4. Fourth Ventricle C Ve 5. Lateral Ventricle 6. Cisterna Magna 7. Venous drainage Ventricle movie: Phantom Ventricles: Lateral view

(from Dave Morton) Blockage of the cerebral aqueduct will lead to the enlargement of

A. third ventricle B. right lateral ventricle C. left lateral ventricle D. interventricular foramina E. all of the above 0 0 0 0 0

e le a v in tric m ntricle n abo e e ra e v fo th l r f ra a o te ll third ventricle a a tricul n left l right lateral v rve te in Ventricles: Frontal view ( Dave Morton)

• (from David Morton) Ventricle: Isolated Circulation of CSF (David Morton) In this coronal section of a cavernous sinus you can see? (Dave Morton and Frank Netter

1. CN 7 and 8 2. CN 2 3. Optic Chiasm 4. Internal Carotid Artery 5. Ophthalmic Artery

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8 m s ry d rtery n CN 2 ia a 7 Ch d Arte ic ti t lmic A CN p a O hth p O ternal Caro In All the colored nerves go to or come from

1. Striated muscle derived from branchial arches 2. Sense organs 3. parasympathetic ganglia 4. Postganglionic 0 0 0 0

. s ... l... ic.. sympathetic an eti n g h at lio or p ng d musc se te tga a en s neurons S o tri S parasym P Autonomics (Dave Morton) Parasympathetics of head (Dave Morton)

Branchial Arches 1,2,3,4,(6) This recent clot over the dura is most likely due to laceration of the Frontal

A. Middle meningeal artery B. Transverse sinus C. Anterior cerebral artery

D. Superior sagittal 0 0 0 0

sinus .. ... e b. g re agit... e in c r s n r e erse sin... o v ri le m dd Ante Superio i Trans M In a patient with multiple sclerosis several areas of abnormal demyelination in the white matter can be seen on an MRI. What glial cell normally maintains CNS myelin?

A. Astrocyte B. Microglial cell C. Oligodendrocyte D. Schwann Cell 0 0 0 0 0

l el E. Ependymal cell te c yte y c Cell c n ro mal d y stro n d A e wan d n icroglial cello ch M S lig Epe O Fixed Brain of patient with multiple Sclerosis (www.neuropathogyweb.org Northeastern Ohio Universities College of Medicine) This vessel (red) gives rise to

1. Vertebral & basilar Arteries 2. Anterior spinal artery 3. Anterior and middle cerebral arteries 4. Posterior communicating artery

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.. .. Image modified from Netter a. a... b n pi & s ior comm. bral e rt ster o Ve Anterior Anterior and m... P Vertebrals, Internal Carotid and Circle of Willis The yellow structure contains: 1. Preganglionic sympathetic cell bodies 2. Postganglionic sympathetic cell bodies 3. Preganglionic parasympathetic cell bodies 0 0 0 0 4. Postganglionic ...... ic ic.. parasympathetic ic . on n ion i lio g ngl n ngl a a a anglionic . g cell bodies g g g re Pre P Post Post Sympathetics (Dave Morton) Planes