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Q What happens to the red blood cells (RBCs) in the blood of a person residing at higher altitudes?

ID: #9992 Respiratory system 117 views
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#9992Q ID
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Respiratory systemTopic
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  • A Decrease in size ✔ ✖
  • B Increase in size ✔ ✖
  • C Decrease in number ✔ ✖
  • D Increase in number ✔ ✖
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When a person resides at higher altitudes, the air pressure and oxygen levels decrease. This triggers a response in the body to produce more RBCs to carry oxygen to the tissues. The hormone erythropoietin (EPO) is produced by the kidneys in response to low oxygen levels, which stimulates the bone marrow to produce more RBCs. This increase in RBC production helps to maintain adequate oxygen levels in the body tissues. As a result, the number of RBCs in the blood of a person residing at higher altitudes increases.

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