रक्त कोशिका  हिन्दी देवनागरी में पढ़ें।

rakt koshikaen

rakt koshika athava 'rakt kanika' (angrezi: Blood Cell) rakt men payi jati hai. plajma ke atirikt shesh rakt ka lagabhag 40-45 pratishat bhag rudhiranuon ka bana hota hai. is bhag ko 'himetokrit' kahate hain.

prakar

manushy ke rakt men nimnalikhit tin prakar ki rakt koshikaen ya rudhiranu paee jati hain-

  1. lal rakt koshika
  2. shvet rakt koshika
  3. rakt pletalets

ye tinon koshikayen milakar lagabhag 45 pratishat rakt ootakon ka nirman karati hain, shesh 55 pratishat bhag plavika se banata hai.

lal rakt koshika

lal rakt koshika shvasan angon se aauksijan lekar sare sharir men pahunchane ka aur karban daeeaksaeed ko sharir se shvasan angon tak le jane ka kary karati hai. inaki kami se 'raktalpata' (enimiya) ka rog ho jata hai.

shvet rakt koshika

shvet rakt koshikayen sahaj pratiraksha pranali ka mukhy bhag hain, inaka jivan kal kuchh din se lekar varshon ka hota hai. ye lal rudhir kanikaon se badi, kintu snkhya men kam aniyamit akar ki evn kendrak yukt hoti hain. manushy ke ek ghan milimitar rudhir men inaki snkhya lagabhag 7500 (6000-10,000) tak hoti hai. inamen himoglobin nahin paya jata hai, isalie ye safed ya rngahin hoti hai.

bimbanu

bimbanu rakt ka thakka jamane men mahatvapoorn bhoomika nibhate hain. ye keval staniyon ke rudhir men hi paee jati hain. manushy ke rakt men inaki snkhya 2.5 lakh prati ghan milimitar hoti hai. ye ati sookshm, kendrakavihin, snkuchanashil, gol ya andakar, ubhayottar evn plet ke akar ki hoti hain. inamen 15 pratishat vasa, 50 pratishat protin hoti hai. inaka kary kshatigrast bhag se bahate hue rakt ka thakka jamana hai. thakka jamane se us sthan se rudhir ka bahana band ho jata hai. inaka jivanakal 1-8 ya 10 din hota hai.

rakt koshikaon men kami raktakshinata ka karan banati hai. doosari or vriddhi paaulisaithimiya kahalati hai.


panne ki pragati avastha
adhar
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madhyamik
poornata
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tika tippani aur sndarbh

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