लाल रक्त कोशिका
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[[chitr:Red-and-White-Blood-Cells.jpg|thumb|250px|lal tatha shvet rakt koshikaean]] lal rakt koshika (aangrezi: Red Blood Cells or RBCs) manav sharir mean rakt ki sabase pramukh koshika hai. yah koshikaean ridhadhari praniyoan ke shvasan aangoan se aauksijan lekar use sharir ke vibhinn aangoan ki koshikaoan tak pahuanchane ka kary karati haian.
- in koshikaoan mean kendrak anupasthit hota hai.
- lal rakt koshikaean shvasan aangoan se aauksijan lekar sare sharir mean pahuanchane ka aur karban daeeaksaeed ko sharir se shvasan aangoan tak le jane ka kary karati haian.
- inaki kami se 'raktalpata' (enimiya) ka rog ho jata hai.
- lal rakt koshika ki ayu kuchh dinoan se lekar 120 dinoan tak ki hoti hai. isake bad isaki koshikaean tilli mean tootati rahati haian. parantu isake sath-sath asthimajja mean inaka utpadan bhi hota rahata hai.
- in koshikaoan ke banane aur tootane ki kriya ek nishchit anupat mean hoti rahati hai, jisase sharir mean rudhir ki kami nahian ho pati.
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tika tippani aur sandarbh
sanbandhit lekh