SKELET

  SKELET (az yunoni Skeletos — khushkshuda, qoqshuda), majmui boftahoi sakhti organizmi hayvonot va odamro guyand, ki vazifai takyagohi badan va az ofathoi mekhaniki muhofizat kardani onro ijro mekunad.

  Skeleti odam az ustukhonhoi jumjuma, dastu poy va tana iborat buda (hamagi besh az 200 ustukhon), az jihati sokhti umumi ba Skeletii hayvonoti muhrador va maymunhoi odamshakl monand ast. Skeleti odam az Skeleti maymun tanho bo sokht va kalon budani jumjuma, shakli ustukhonhoi dastu poy, sutunmuhra va kos farq mekunad. Skeleti az boftahoi payvandi iboratbudai nasli odam hanuz dar 2-mohagii inkishofi dokhilibatni ba asosi tagoyakii ustukhonhoi minbada tabdil meyobad, ki inkishofi on dar 25—2S-solagi komilan an- jom meyobad. Az rui darajahoi ustukhonshavi, ki ba vosivai rentgen muayyan karda meshavad, sinnu soli odamro aniq kardan mumkin ast. Dar barkamoli va solkhurdagi dar natijai dar hujayrahoi ustukhon kam shudani miqdori kalsiy ustukhonho pukkayu sersurokh (osteoporoz) meshavand va prosessi pirshaviv ustukhonhoi Skelet avj megirad. Sokhti Skelet khususiyathoi jinsi niz dorad; masalan, ustukhonhoi dastu poi Skeletii mard nisbat ba zanho kalon, gafs, vaznin buda, ustukhoni kos tang va qafasi sinaash vase meboshad. Bemorihoi Skelet ba ikhtiloli mubodilai moddaho va makhsusan boftahoi ustukhoni va nosomonii baze gadudhoi usorai dokhili vobasta ast. Ikhtiloli gunoguni inkishofi dokhilibatnii ustukhon bisyor vaqt bo shaklvayronihoi modarzodii ustukhonho zohir megardad. Dar borai osebi ustukhonhoi Skelet nigared Shikasti ustukhon.

 Skelet dar paleontologiya manbai asosii omuzishi evolyutsiyai morfologii odam va tajdidi namudi zohirii ajdodi qadimai on meboshad