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rcf1 tchshdng0tchcfpat1tchcbpat1tfbias0 tfi-360tli1080tjclisttabttx1080 SItlistname Stlistid2069724388SSIttlistoverridetableItlistover
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overridetlistid552889447tlistoverridecount0tls2SItl
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SSItinfoItuprIttitle Ochiul si vedereaSIttudtuc0Ittitle Ochiul Ituc1tu351 si vedereaSSSSItauthor Grigore CalinSItoperator DVDSItcreatimtyr2002tmo5tdy15thr3tmin17SItrevtimty
r2005tmo2tdy23thr16tmin8SItversion3SItedmins0SItnof
pages4SItnofords2270SItnofchars12940SIttcompany NoneSItnofcharss15891SItvern8247SStpaper11906tpape
rh16838tmargl1134tmargr1134 tidoctrltftnbjtaenddoctnoxlattoyentexpshrtntnoultr
lspctdntblnsbdbtnospaceforulthyphcaps0tformshadetho
rzdoctdghspace180tdgvspace180tdghorigin1701tdgvorig
in1984tdghsho0tdgvsho0tjexpandtviekind1tviescale100
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rgtposxctposy0taspalphataspnumtfaautotadjustrighttr
in0tlin0titap0 tfs20tlang1048tlangfe2052tcgridtlangnp1048tlangfen
p2052 ItfieldIttfldinst Itcs19 PAGE SSItfldrslt Itcs19tlang1024tlangfe1024tnoproof 4SSSItcs19 tpar Stpard ts18tql tli0tri0tidctlparttqcttx4153ttqrttx8306taspalphata
spnumtfaautotadjustrighttrin0tlin0titap0 Itpar SSIttpnseclvl1tpnucrmtpnqctpnstart1tpnindent720tpn
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pnhangItpntxta .SSIttpnseclvl3tpndectpnqctpnstart1tpnindent720tpn
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pnhangItpntxta SSIttpnseclvl5tpndectpnqctpnstart1tpnindent720tpnh
angItpntxtb SItpntxta SSIttpnseclvl6tpnlcltrtpnqctpnstart1tpnindent720tp
nhangItpntxtb SItpntxta SSIttpnseclvl7tpnlcrmtpnqctpnstart1tpnindent720tpn
hangItpntxtb SItpntxta SSIttpnseclvl8tpnlcltrtpnqctpnstart1tpnindent720tp
nhangItpntxtb SItpntxta SSIttpnseclvl9tpnlcrmtpnqctpnstart1tpnindent720tpn
hangItpntxtb SItpntxta SStpardtplain ts15tqc tli0tri0tidctlpartaspalphataspnumtfaautotadjustrig
httrin0tlin0titap0 tfs28tultlang1048tlangfe1033tcgridtlangnp1048tlang
fenp1033 Itf31 Ochiul tbai vedereatpar Stpardtplain tql tli0tri0tidctlpartaspalphataspnumtfaautotadjustrig
httrin0tlin0titap0 tfs20tlang1048tlangfe2052tcgridtlangnp1048tlangfen
p2052 Itlang1048tlangfe1033tcgrid0tlangfenp1033 tpar tpar tpar tpar Stpardtplain ts1tqj tli0tri0tkeepntidctlpartaspalphataspnumtfaautotout
linelevel0tadjustrighttrin0tlin0titap0 tfs24tultlang1048tlangfe1033tcgridtlangnp1048tlang
fenp1033 Itbtf31 Structura tbai functfeiile aparatului vizualtpar Stpardtplain tqj tli0tri0tidctlpartaspalphataspnumtfaautotadjustrig
httrin0tlin0titap0 tfs20tlang1048tlangfe2052tcgridtlangnp1048tlangfen
p2052 Itfs24tultlang1048tlangfe1033tcgrid0tlangfenp1033 tpar Stpard tqj tfi720tli0tri0tidctlpartaspalphataspnumtfaautotadj
ustrighttrin0tlin0titap0 Itf31tfs24tlang1048tlangfe1033tcgrid0tlangfenp1033 Aparatul vizual, cel mai important organ de simtfe, informeazte3 sistemul nervos central asupra tuturor modificte3rilor care au loc teen mediul teenconjurte3tor.tpar Functfeioneazte3 pe principiul sistemul cibernetic, adicte3 are teen exterior glot-bul ocular numit tbai aparat de luat vederi, apoi cte3i de transmisie a mesajului tbai centri corticali de inteSItfs24tlang1048tlangfe1033tcgrid0tlangfenp103
3 rpretare a imaginii.tpar SItbtfs24tlang1048tlangfe1033tcgrid0tlangfenp1033 Globul ocularSItf31tfs24tlang1048tlangfe1033tcgrid0tlangf
enp1033 este teen general de formte3 sfericte3 tbai are o structurte3 formatte3 din trei membranetpar - Membrana externte3, numitte3 SItitfs24tlang1048tlangfe1033tcgrid0tlangfenp1033 scleroticaSItf31tfs24tlang1048tlangfe1033tcgrid0tl
angfenp1033 , de culoare albte3 sidefie, fibroaste3 tbai rezistentte3, inextensibilte3 la adult, dar utbaor extensibilte3 teen prima copilte3rie, este numitte3 tbai scoica scleralte3, deoarece mentfeine forma globului ocular tbai a fost asemuitte3 cu sistemul osos din alte pte3rtfei ale organismului. Este formatte3 din fibre conjunctive-elastice, teempletite teen patru straturi, teen sistem de retfeea de bat-lon, care teei dte3 rezistentfea tbai starea opacte3, netransparentte3. Aceste fibre iau natbat-tere prin secretarea de substantfee colagene tbai mucopolizaharizi a unor celule nut-mite fibrocite. Dacte3 genetic aceste celule nu au mesaj normal de sintetizare a acestor substantfee, apar fibre cu rezistentfete3 reduste3, care prin presiunea contfeit-nutului globului ocular se alungesc sau teetbai modificte3 forma, putte2nd ste3 ducte3 la tulburte3ri de refractfeie cum este miopia, astigmatismul, cheratoconul.tpar SItfs24tlang1048tlangfe1033tcgrid0tlangfenp1033 Rolul fiziologic al scleroticei este de a proteja celelalte componente oculare.tpar Stpard tqj tli0tri0tidctlpartaspalphataspnumtfaautotadjustrig
httrin0tlin0titap0 Itf31tfs24tlang1048tlangfe1033tcgrid0tlangfenp1033 Membrana externte3, sclerotica, teen 16 anterioarte3, la polul anterior teetbai mot-dificte3 structura prin plasarea fibrelor teen sistem paralel, ceea ce face ca aceastte3 portfeiune ste3 devinte3 transparentte3. Aceastte3 zonte3 este numitte3 corneea transpat-rentte3, prin care pte3trunde lumina, excitantul specific al ochiului. Corneea poate fi asemuitte3 cu geamul unei teencte3peri. tpar Stpard tqj tfi720tli0tri0tidctlpartaspalphataspnumtfaautotadj
ustrighttrin0tlin0titap0 Itf31tfs24tlang1048tlangfe1033tcgrid0tlangfenp1033 Corneea are principalul rol optic de a permite pte3trunderea radiatfeiilor luminoase tbai, prin puterea ei de refractfeie de 40 de dioptrii, de a devia traiectoria luminii, pentru a ajunge la retinte3.tpar - Membrana mijlocie este numitte3 uveea tbai se teemparte teen uveea anterioarte3 tbai uveea posterioarte3. Uveea anterioarte3 cuprinde la rte2ndul ei doute3 elemente corpul ciliar tbai irisul.tpar SItitfs24tlang1048tlangfe1033tcgrid0tlangfenp1033 Corpul ciliarSItfs24tlang1048tlangfe1033tcgrid0tlangfenp1
033 este formatSItf31tfs24tlang1048tlangfe1033tcgrid0tlangf
enp1033 de mutbachii ciliari tbai procesele ciliare.tpar SItitf31tfs24tlang1048tlangfe1033tcgrid0tlangfenp1
033 Mutbachii ciliariSItf31tfs24tlang1048tlangfe1033tcgrid0tlang
fenp1033 sunt netezi, nesuputbai vointfeei tbai functfeioneazte3 reflex, avte2nd legte3turi foarte fine cu lentila cristaliniante3 transparentte3. tcendeplinesc cea mai importantte3 functfeie opticte3 ocularte3 tbai anume punerea la punct a imaginii pe care o fixte3m de la orice distantfete3. Aceasta este functfeia de SItitf31tfs24tlang1048tlangfe1033tcgrid0tlangfenp1
033 acomodatfeie vizualte3SItf31tfs24tlang1048tlangfe1033tcgrid0tla
ngfenp1033 , necesarte3 unei vederi clare teen privirea de la orice distantfete3 dorim. Mutbachii actfeioneazte3 prin contractfeie sau relaxare asupra cristalinului.tpar SItitfs24tlang1048tlangfe1033tcgrid0tlangfenp1033 Procesele ciliareSItfs24tlang1048tlangfe1033tcgrid0tlangfenp
1033 , bogatSItf31tfs24tlang1048tlangfe1033tcgrid0tlangfe
np1033 vascularizate, secrette3 u...
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