People living at sea level have around $5$ million $RBC$ per cubic millimeter of their blood whereas those living at an altitude to $5400$ metres have around $8$ million. This is because at high altitude
People living at sea level have around $5$ million $RBC$ per cubic millimeter of their blood whereas those living at an altitude to $5400$ metres have around $8$ million. This is because at high altitude
- [AIPMT 2006]
- A
people eat more nutritive food, therefore more $RBCs$ are formed
- B
people get pollutionfree air to breath and more oxygen is available
- C
atmospheric $O_2$ level is less and hence more $RBCs$ are needed to absorb the required amount of $O_2$ to survive
- D
there is more $UV$ radiation which enhances $RBC$ production.
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