EPENDYMALLI NINGO F BRAINV ENTRTCLEASN DC ENTR,AL GANAL OF THE SFINAL CORD OF ADULT ALBINO RAT: A SCANNINGE LECTRONM ICROSCOPSICT UDY

Document Type : Original Article

Authors

1 Anatom Dyepartment,Faculty of Medicin MedicineM, isrU niversitfyo r Science

2 A,*n atomyD epartmenFt,a cultyo f MedicineA,i n$ hams University

Abstract

Ependymacle llsp rovidea unicellulaerp ithelialiln ingfo r brainv entriclesa ndc entracl analo f the spinacl ord( Berrye t al., 1995)E. mbryologically, e pendymacle llsd ifferentiaftreo mt he neuroepithelciaell ls,a ftert he latterc easet o producen euroblasatsn dg liablast(sS adferf, 9 85). Therei s a markedr egionavl ariationin the ependymaliln ingo f the brainv entricleisn mammalslt. wasr eportetdh att hee pendymacle llso verlyinga reaso f greym attear rec uboidainl shapea nde achc ellp resentns umerousc iliai n its apicafc entres, urroundebdy shortm icrovillHi. owever,wheret hee pendymlain esw hitem attert,h ec ellsa rem arkedlfyla tteneudpto the extento f beings quamouas ndf ewero f thema rec iliated($ cott et
al.,1 974;P agee t al.,1 979M; estrese t at.,1 985M; itroe t al.,1 989A; lvarez- Morujoe t al,,1 992)M. oreovetrh, e ependymoaf thev entriculacrh oroid plexusesw as noticedto be a low cuboidael pitheliumw ith numerous microvilbliu tf ewc iliao n the surfacea, ndi ts underlyinsgt romaw asr ichi n fenestratecda pillarie(sC fementai nd lVlarin1i,9 721.

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