Ventricles, meninges and vessels of the CNS
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1 Ventricles, meninges and vessels of the CNS
2 Lateral ventricle (ventriculus lateralis) Third ventricle (ventriculus tertius) Fourth ventricle (ventriculus quartus) Central canal (canalis centralis)
3
4 Fourth ventricle Floor = Fossa rhomboidea med. V VI XII X VII Sulcus medianus Sulcus limitans Trigonum n. XII Trigonum n. X Eminentia medialis - colliculus facialis (VI) Striae medullares Area vestibularis Tuberculum acusticum
5 Fourth ventricle Roof Velum medullare sup. Fastigium Velum medullare inf. = tela choroidea (pia mater+plx. choroid. ) Apertura mediana Aperturae laterales
6 Aqueductus cerebri Third ventricle
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8 Tela choroidea v. tertii Tela choroidea v. lateralis
9 Inferior wall: Chiasma opticum Infundibulum Third ventricle: Superior wall: Tela choroidea v. tertii Rostral wall: Columnae forn. Commissura ant. Lamina termin.
10 Third ventricle: Posterior wall: Recessus suprapinealis Commissura habenularis Recessus pinealis Commissura post.
11 Third ventricle: Lateral wall: Thalamus Sulcus hypothal. Hypothalamus Adhesio interthalamica
12 Third ventricle: Foramen interventriculare Recessus suprapinealis pinealis Recessus opticus infundibuli Aqueductus mesencephali
13 Ventriculus lateralis Cornu ant. (frontale) Pars centralis Cornu post. (occipitale) Cornu inf. (temporale)
14 Cornu anterius corpus callosum septum pell.
15 Pars centralis oof: orpus callosum loor: ornix lexus choroideus halamus tria terminalis orpus ncl. caudati Fissura transversa cerebri
16 Cornu posterius Glomus choroideum Corpus callosum Calcar avis Trigonum collaterale
17 Cornu inferius Roof: Stria terminalis Cauda ncl. caudati Corpus callosum Floor: Hippocampus (fimbria hippocampi) Plexus choroideus Eminentia collateralis
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19 CT MRI
20 Meninges Calvaria Potential epidural space Ektomeninx - dura mater: endosteal, meningeal layers (pachymeninx) Potential subdural space Endomeninx (leptomeninx) arachnoid mater Subarachnoid space(csf) pia mater
21 Cranial meninges Dura mater tough layer of fibrous tissue fused with the endosteum of the skull contains venous sinuses dural folds extend into the cranial cavity and help stabilize the brain
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23 Dural folds Falx cerebri Falx cerebelli Tentorium cerebelli Diaphragma sellae Cavum trigeminale Vagina n. optici
24 Blood and nerve supply of the dura mater CN V: supratentorial compartment Spinal nerves (C1 - C3) CN X: infratentorial compartment Aa. meningeae From: a. ethm. ant. ant. fossa a. maxillaris middle fossa a. phar. asc. posterior fossa Veins are tributaries of the dural sinuses
25 Arachnoid mater Thin avascular delicate layer It passes over sulci of the brain Pinhead pouches project through the dural wall of the major venous sinuses - Granulationes arachnoideales - transfer of CSF to the venous system
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27 Pia mater Vascular, enters sulci of the brain Cisternae subarachnoideales: - chiasmatis - fossae lat. cerebri - interpeduncularis - cerebellomedullaris
28 Meninges of the spinal cord Epidural space (Spatium epidurale) Dura mater spinalis Lig. dent. Pia mater Arachnoidea Subdural space (Spatium subdurale) Arachnoidea spinalis Sp sub-a Sp sub-d Dura mater Subarachnoid space (Spatium subarachnoideum) Pia mater spinalis: lig. denticulatum
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30 Cisterna lumbalis Medullary cone: L1-2 Dural sac: S2-3 Lumbar puncture (spinal tap)
31 Liquor cerebrospinalis (CSF) Clear, colorless fluid,150 ml, secreted at the rate of ml daily Produced by the choroid plexuses of ventricles Supports the brain and spinal cord, maintains a uniform pressure around them. Circulation: Lateral ventricles for. interventriculare 3 rd ventricle aquaeductus cerebri 4 th ventricle median and lat. apertures subarachnoid space sinus durae matris
32
33 Hydrocephalus
34 Arteries of the CNS Spinal cord Rr. spinales a. cervicalis asc. a. vertebralis a. cervicalis prof. aa. intercostales post. aa. lumbales a. iliolumbalis a. sacralis lat. a. sacralis mediana
35 Rr. spinales: aa. radiculares ant. et post.: a. spinalis ant. (fissura med. ant.) aa. spinales post. (sulcus lat. post.)
36 Vv. spinales Plx. venosi vertebr. int. > vv. intervertebrales > plx. venosi verteb. ext. > plx. suboccipitalis > vv. vertebrales vv. cervicales prof. vv. intercostales vv. lumbales vv. sacrales lat.
37 Brainstem, cerebellum Aa. cerebri post. Aa. cerebelli sup. Aa. pontis Aa. cerebelli inf. ant. A. basilaris Aa. cerebelli inf. post. Aa. spin. ant. et post. Aa. vertebrales
38 Brain Aa. cerebri: anterior (A. car. int.) media (A. car. int.) posterior (A. basil.)
39 a. cerebri ant. a. cerebri med. a. com.post. a. cerebri post. Circulus arteriosus Aa. corticales Aa. centrales Aa. choroideae
40 anterior media posterior
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42 Veins of the brain superficial Vv. cerebri sup. SSS V. cerebri media spf. SC Vv. cerebri inf. SPS,SPI,ST
43 deep veins 1. vv. septi pellucidi 2. vv. thalamostr. sup. 3. vv. choroideae sup. = Vv. cerebri int. + Vv. cer. med. prof. + Vv. basales V. magna cerebri Sinus rectus
44 Sinus durae matris rectus 2 sagittalis sup. 3 sagittalis inf. 4 occipitalis 5 transversus 6 sigmoideus 7 sphenoparietalis 8 petrosus sup. 9 petrosus inf. 10 cavernosus 11 plx. basilaris
45 Tributaries of sinuses Vv. cerebri Vv. cerebelli Vv. ophthalmicae Vv. labyrinthi Vv. meningeae Vv. diploicae Vv. emissariae
46 Illustrations were copied from: Atlas der Anatomie des Menschen/ Sobotta. Putz,R., und Pabst,R. 20. Auflage. München: Urban & Schwarzenberg, 1993 Netter: Interactive Atlas of Human Anatomy. Windows Version 2.0
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