Arahnoida spinala

©

Autor:

Continua arahnoida craniana de la nivelul gaurii occipitale mari in coloana vertebrala. Este strans aplicata pe aspectul profund al durei mater. In locurile unde vasele si nervii patrund in spatiul subarahnoidian sau il parasesc, arahnoida se reflecta pe suprafata acestor structuri, constituindu-le atat vaselor cat si nervilor un invelis subtire de celule leptomeningeale. Astfel, se formeaza un unghi subarahnoidian cand nervii trec prin dura in orificiile intervertebrale. La acest nivel, straturile leptomeningelui (arahnoida si pia mater) fuzioneaza si se continua cu perinervul (stratul care inconjoara un fascicul de fibre in cadrul unui nerv periferic), iar epinervul vine in continuarea durei. Un astfel de aranjament sigileaza spatiul subarahnoidian, mentinand LCR in acest compartiment, cand nervii devin de domeniul sistemului nervos periferic. [1]

Data actualizare: 12-08-2013 | creare: 12-08-2013 | Vizite: 5565
Bibliografie
1. Meninges - Susan Standring [Editor-in-Chief] - Gray's Anatomy, The Anatomical Basis of Clinical Practice, 40th Edition, 2008, pag. 751
2. Meninges and Cerebrospinal Fluid [Chapter 7] - M. Patestas, L. P. Gartner - A Textbook of Neuroanatomy, 2009, pag. 84
3. Meningele [Capitolul 8] - A. Nechita, O. Maftei, C. L. Musat, M. Debita, V. Ardeleanu, O. A. Cibu - Anatomia functionala a sistemului nervos central, 2007, pag. 391
4. Brain Herniation - G. Petermann, J. G. Smirniotopoulos - Department of Radiology and Radiological Sciences, Uniformed Services University of the Health Sciences, link: http://rad.usuhs.mil/rad/herniation/
5. Meningitis - Centers for Disease Control and Prevention, link: http://www.cdc.gov/meningitis/index.html
6. Extradural hemorrhage - MedlinePlus, National Institutes of Health, link: http://www.nlm.nih.gov/medlineplus/ency/article/001412.htm
7. Meningioamele craniene - D.C. Jianu, S. Deme, P. Maxim, S. Kory Calomfirescu, A. Zolog, H. Ples, F. Birsasteanu, S.N. Jianu, N. Ilin - Asociatia Medicala Romana, link: http://www.medica.ro/reviste_med/download/neurologie/2006.2/Neuro_Nr-2_2006_Art-05.pdf
8. Meningitis - Wikipedia, The Free Encyclopedia, link: http://en.wikipedia.org/wiki/Meningitis
9. Sinus pericranii - J. Jones, Y. Weerakkody - Radiopaedia.org, member of UBM Medica network, link: http://radiopaedia.org/articles/sinus-pericranii
10. Subdural Hematoma - R.J. Meagher - Medscape Reference - Drugs, Diseases & Procedures, link: http://emedicine.medscape.com/article/1137207-overview
11. Spinal Epidural Abscess - J. S. Huff - Medscape Reference - Drugs, Diseases & Procedures, link: http://emedicine.medscape.com/article/1165840-overview
©

Copyright ROmedic: Articolul se află sub protecția drepturilor de autor. Reproducerea, chiar și parțială, este interzisă!