Question

ᴡʜᴀᴛ ɪs ᴛʜᴇ ʟɪғᴇsᴘᴀɴ ᴏғ ʀᴇᴅ ʙʟᴏᴏᴅ ᴄᴇʟʟs....?​

Answer 1

Answer:

Normal human red blood cells have an average life span of about 120 days in the circulation after which they are engulfed by macrophages.The haem group haemoglobin gives RBCs their red colour. Haemoglobin has the role in transportation of oxygen from lungs to various other tissues.

Explanation:

Answer 2

Answer:

Red cells have an average life span of about 120 days after which they are cleared by- phagocytosis by reticuloendothelial macrophages due to accumulated changes during their life span. Approximately 5 million erythrocytes (the average number per μl) are removed from the circulation every second.