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p1033 Itrtlchtfcs1 taf0tafs36 tltrchtfcs0 tbtf36tfs36tinsrsid2312808tcharrsid7082304 APARATUL RESPIRATORtpar SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tbtf36tfs22tultinsrsid2312808tcharrsid7082304 tpar tpar Stpard tltrpartqj tli-567tri-574tidctlpartnooverflotfaromantrin-574t
lin-567titap0tpararsid7082304 Itrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 ttab Aparatul respirator este alcatuit din totalitatea organelor care asigura mecanismul respiratiei al ventilatiei pulmonare, ca si al schimburilor de gaze de la nivelul alveolelor pulmonare - SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 hematoza. SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 Acestea sunt caile respiratorii superioare cavitatile nazale si faringele, cele inferioare laringele, trahee si bronhii si plamanii, ca organe principale ale actului respirator.tpar SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tbtf36tfs22tinsrsid2312808tcharrsid7082304 ttab Nasul si cavitatea nazala SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 formeaza primul segment al acestui aparat. Nasul, formatiunea mediofaciala cu caracteristici specifice fiecarui individ si cu dublu rol functional respirator si olfactiv imbraca forma unei piramide cu fata in jos. Este alcatuit dintr-un schelet SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 osteocartilaginosSItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 , compus din oasele nazale, cartilajele laterale, cartilajele aripii nasului SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 alare SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 mari si mici, ca si alte accesorii, mai mici. La exterior este acoperit de un strat de muschi superficiali - pielosi - si tegument, iar la interior, captusit de mucoasa nazala, cu exceptia vestibulului captusit de tegument. Nasul prezinta o SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 cavitate nazala SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 care este impartita de un perete median sept nazal in doua cavitati, numite SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 fose nazale.SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 Septul nazal este format din lama perpendiculara a etmoidului si osul vomer SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 apex nasiSItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 , unde se termina cu septul fibros, mobil. SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 tpar ttab Fosele nazale SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 comunica cu exteriorul prin doua orificii, numite SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 narineSItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 , iar cu faringle, prin doua orificii largi,SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 meaturi nazofaringiene, SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 choaneSItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 pe schelet. Fiecare fosa nazala prezinta anterior, in dreptul aripii nazale, un vestibul nazal, prevazut cu un prag denumit SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 limen nasiSItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 , peri vibrise si glande, si fosa nazala propriu-zisa, ce purifica si umecteaza aerul inspirat. Fosa nazala are patru pereti, dintre care cel lateral este mai complicat si prezinta teri lame osoase cornetele concile nazale, superior si mijlociu, prelungiri ale osului etmoid, si cel inferior atasat maxilarului ca os independent. Dedesubtul lor se formeaza niste spatii numite meaturi nazale in care se deschid sinusurile paranazale, cavitati accesorii ale foselor nazale. Acestea sunt sinusurile frontale, etmoidale, ale maxilarului si ale sfenoidului. Cavitatile nazale sunt captusite de o mucoasa foarte bogat vascularizata si impartita functional in doua regiuni una in treimea superioara, SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 mucoasa olfactivaSItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 , si una in partea inferioara, SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 titf36tfs22tinsrsid2312808tcharrsid7082304 mucoasa respiratorieSItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 .tpar ttab SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tbtf36tfs22tinsrsid2312808tcharrsid7082304 Faringele SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 reprezinta locul de incrucisare a caii respiratorii cu cea digestiva, la care va fi deschis.tpar ttab SItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tbtf36tfs22tinsrsid2312808tcharrsid7082304 LaringeleSItrtlchtfcs1 taf0tafs22 tltrchtfcs0 tf36tfs22tinsrsid2312808tcharrsid7082304 , alcatuit dintr-un...
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