मेरुरज्जु
thumb|250px|merurajju
Spinal Cord
(aangrezi:Spinal Cord) merurajju adhikaansh jiv jantuoan ke sharir ka avashyak aang haian. is lekh mean manav sharir se sanbandhit ullekh hai. mastishk ka pichhala bhag lamba hokar khop di ke pashch chhor par upasthit maharandh se nikalakar ridh ki haddi tak phaila rahata hai. ise merurajju ya sushumna kahate haian. yah kasherukaoan ke madhy upasthit tantrikiy nal mean surakshit rahata hai. yah mastishke ke saman dradh tanika tatha mridutanika se ghira rahata hai. merurajju ke madhy bhag mean ek sankari kendriy nal hoti hai. kendriy nal ke charoan or merurajju ki moti divar mean do star hote haian.
- bhitari star ko dhoosar dravy
- bahari star ko shvet dravy kahate haian.
dhoosar dravy mean shrang tatha adhar shrang pae jate haian. isake charoan or majjavrit tantrika koshikaoan se bana hota hai.
merurajju ke kary
is prakar sammilit roop mean merurajju ke do prakar ke kary hote haian-
- mastishk se prapt tatha mastishk ko jane vale avegoan ke lie merurajju path pradan karata hai.
- prativarti kriyaoan ka sanchalan evan niyaman karane ka kary merurajju ka hi hai.
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sanbandhit lekh
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varnamala kramanusar lekh khoj
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