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QARNIYA

karniyaQARNIYA, qismi peshi pardai berunii chashm, ki shaffof ast. Q. chashmro az illatyobi va gardu chang hifz mekunad. Q. az 5 qabat iborat ast: 1) epiteliyai pesh; 2) gishoi asosii pesh yo pardai Boumen; 3) moddahoi khosi Q. yo tanai boftai payvandi; 4) gishoi aqib yo dessemet (qabati dokhilii marzii Q); 5) endoteliyai dessemet. Epiteliyai Q. serqabat ast (dar odam 8 – 10 qabat; gafsii umumiashon to 50 mkm); on bo membranai chandir faro girifta shudaast. Membrana ba moddahoi khosi Q., ki az torhoi kollageni tashkil yoftaand, meguzarad; moddahoi baynihujayravii in qabat az mukopolisakharidho, khondroitinsulfat, khondroitin va seratosulfat iborat meboshand. Darajai shaffofii Q. ba tartibi molekulahoi qismi behujayravi moddahoi asosi va darajai kamobii onho vobasta ast. Boftahoi Q. ragi khun nadorand. Q.-i odam az 70 – 80 tanai asabhoi radiali iborat ast. Ba bemorihoi Q. blennoreya, seratit, stafiloma va g. mansuband.

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