अस्थिमज्जा
thumb|250px|asthimajja ka pratyaropan asthimajja ya 'asthimeru' (aangrezi: Bone Marrow) sharir ki asthiyoan ke bich ka vah mulayam aur spanji bhag hai, jahaan rakt ka utpadan hota hai. majja rakt koshikaoan ka utpadan karane vali stem koshikaoan se bhari hoti haian, jo shvet rakt koshikaoan, lal rakt koshikaoan ya pletalets mean vikasit hoti haian.
- vayask manav ki b di asthiyoan mean majja rakt koshikaean nirman karane mean sahayak hota hai. isamean kul sharir bhar ka char pratishat samahit rahata hai, yani lagabhag 2.6 ki.gra..
- asthimajja goode ke saman mridu ootak hai, jo sab asthiyoan ke spanji bhag ke avakashoan mean, lanbi asthioan ki madhyanalika ki guha mean aur b de akar ki hevarsi nalikaoan mean paya jata hai.
- bhinn-bhinn asthiyoan mean aur anu ke anusar usake sanghatan mean aantar hota hai. vibhinn prakar ki shvet rakt koshikaean hamari pratiraksha pranali ka hissa haian, jo sankraman se l dane mean pratiraksha pranali ki madad karati haian.
- lal rakt koshikaean hamare poore sharir mean aauksijan ki ava-jahi ke lie jimmedar haian. pletalets raktasrav ko rokane ke lie rakt ka thakka banate haian.
- asthimajja stem koshikaoan ka lagatar utpadan karati rahati haian aur ye hamare sharir ki zaroorat ke anusar hi alag-alag prakar ki koshikaoan ko vikasit karati haian.
- majja do prakar ki hoti hai- 'pili' aur 'lal'. pili majja ka adhar taantav ootak hota hai, jisamean rakt vahikaean aur koshikaean paee jati haian, jinamean adhikaansh vasa koshikaean hoti haian. kuchh lal majja ke saman koshikaean milati haian.
- lal majja ka adhar sanyoji ootak hota hai, jisake dhaanche ke jal mean 'rajataragi'[1] tantu aur usase sanbandhit jivanubhakshi koshikaean tatha kee prakar ki rakt kanikaean aur unake poorvagami roop, kuchh vasa koshikaean tatha kuchh lianph parv hote haian.
- REDIRECTsaancha:inhean bhi dekhean
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tika tippani aur sandarbh
- ↑ arajir aauphilik