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NEET · Biology · STD 11 - 15. Body fluids and criculations

રુધિર ગંઠાવવાની પ્રક્રિયામાં વિક્ષેપ થવાને કારણે શરીરમાંથી વધુ પ્રમાણમાં લોહી ગુમાવવા ઘટતી સંખ્યા ધરાવતાં રુધિર કોષોના નામ આપો.

  1. A રક્તકણો
  2. B શ્વેતકણો
  3. C તટસ્થ કણો
  4. D ત્રાકકણિકાઓ
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Correct Answer

(D) ત્રાકકણિકાઓ

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(d) : Thrombocytes are called blood platelets. They are minute disc­shaped cell fragments in mammalian blood. They are formed as fragments of larger cells found in red bone marrow; they have no nucleus. They play an important role in blood clotting and release thromboxane \(A_2\), serotonin and other chemicals, which cause a chain of events leading to the formation of a plug at the site of the damage, thus preventing further blood loss. A reduction in their number can lead to clotting factors which will lead to excessive loss of blood from the body.
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