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ICSE Class 10 Answered

Why infants and children have more RBCs than adult human beings? 

 

Asked by rutvivasani0302.10sdatl | 23 Apr, 2020, 09:49: AM
Expert Answer
  • Oxygen consumption and cardiac output in infants and children is three times those of adults on a body weight basis.
  • Due to the high oxygen affinity of fetal hemoglobin, the oxygen unloading capacity of hemoglobin in infants is about 50% less than in adults. 
  • Hence, infants and children require more RBCs to bind to more oxygen in the body.
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