1 / 36

Lateral (1 st and 2 nd ) ventricles

Lateral (1 st and 2 nd ) ventricles 3 rd ventricle 4 th ventricle Central canal. 4 th ventricle. Floor = rhomb oid fossa. Sulcus medianus Sulci limitantes fovea sup. (V) fovea inf. (IX, X) Trigonum n. XII

gaymon
Download Presentation

Lateral (1 st and 2 nd ) ventricles

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lateral (1stand 2nd) ventricles 3rd ventricle 4th ventricle Central canal

  2. 4th ventricle Floor = rhomboid fossa Sulcus medianus Sulci limitantes fovea sup. (V) fovea inf. (IX, X) Trigonum n. XII Eminentia medialis colliculus facialis (VI) Striae medullares Recessus lat. (area vestibularis) Tuberculum acusticum sup. med. inf.

  3. 4th ventricle Roof = tegmen ■Velum medullare sup. ■Fastigium ■Velum medullare inf.,tela choroidea (pia mater+ependyma) + vessels = plexus choroideus Apertura mediana Aperturae lat.

  4. Aqueductus mesencephali – 3rdventricle Walls: Rostral – columnae fornicis, commissura ant., lamina terminalis Superior - tela choroidea Posterior - recessus suprapinealis, com. habenularum, rec. pinealis, com. post.

  5. Inferior – optic chiasma, infundibulum Lateral – thalamus, hypothalamus

  6. Foramen interventriculare Rec. triangularis Rec.suprapinealis, pinealis Rec. opticus, infundibuli Aqueductus mesencephali

  7. Pars centralis Cornu ant. (frontale) Cornu post. (occipitale) Cornu inf. (temporale)

  8. corpus callosum septum pell. ncl. caudatus Cornu anterius

  9. Pars centralis

  10. Cornu posterius calcar avis sulcus calcarinus em. collateralis sulcus collateralis

  11. Cornu inferius: hippocampus eminentia collateralis corpus callosum tela choroidea

  12. CT MRI

  13. Meninges Calvaria Epidural space Ektomeninx (pachymeninx) -dura mater: periosteal, meningeal layers Subdural space arachnoid mater Endomeninx (leptomeninx) Subarachnoid space (CSF) pia mater

  14. Dural infoldings: Falx cerebri Falx cerebelli Tentorium cereb. Diaphragma sellae Cavum trigeminale Vagina n. optici

  15. Supply of the dura mater: Aa. meningeae Branches from: a. ethm. ant. – anterior cranial fossa a. maxillaris – middle cranial fossa a. phar. asc. – posterior cranial fossa CN V:supratentorial compartment C2, C3, CN X, XII:infratentorial compartment

  16. Granulationes arachnoideales– protrude through the meningeal layer of the dura into the venous sinuses – transfer of CSF to the venous system

  17. Pia mater Subarachnoid cisterns : • - chiasmatic • - fossae lat. cerebri • interpeduncular • ambient • quadrigeminal • pontocerebellar • - cerebellomedullary

  18. Meninges of the spinal cord Epidural spaceDura mater spinalis Subdural spaceArachnoidea spinalis Subarachnoid spacePia mater spinalis: lig. denticulatum Pia mater Lig. dent. Arachnoidea Sp sub-a Dura mater Sp sub-d

  19. Cisterna lumbalis Medullary cone: L1-2 Dural sac: S2-3 Lumbar puncture (spinal tap)

  20. Liquor cerebrospinalis (CSF) Clear, colorless fluid,150 mL, secreted at the rate of 400-500 mL daily Produced by the choroid plexuses of ventricles Protects the brain, prevents the weight of the brain from compressing the nerves and vessels against the cranium. Circulation:Lateral ventricles – for. interventriculare – 3rd ventricle – aquaqeductus cerebri – 4th ventricle –median and lat. apertures – subarachnoid space –sinus durae matris

  21. Hydrocephalus

  22. 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

  23. Rr. spinales: aa. radiculares ant. et post.: a. spinalis ant. (fissura med. ant.) aa. spinales post. (sulcus lat. post.)

  24. 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.

  25. Brainstem, cerebellum Aa. cerebri post. Aa. cerebelli sup. Aa. pontis Aa. cerebelli inf. ant. A. basilaris Aa. cerebelli inf. post.Rr. ad med. oblong. Aa. spin. ant. et post. Aa. vertebrales

  26. Brain Aa. cerebri: anterior (A. car. int.) media (A. car. int.) posterior (A. basil.)

  27. a. cerebri ant. a. cerebri med. a. com.post. a. cerebri post. Circulus arteriosus ■ Aa. corticales ■ Aa. centrales■ Aa. choroideae

  28. anterior media posterior

  29. Veins of the brain ■ superficial Vv. cerebri sup. Vv. cerebri inf. V. cerebri media spf.

  30. ■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

  31. Sinus durae matris 2 3 1 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 6 1 5 4 7 10 9 11 8

  32. Tributaries of sinuses Vv. ophtalmicae Vv. labyrinthi Vv. meningeae Vv. diploicae Vv. emissariae

More Related