explain the faction of red blood cell and white blood cell
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The cellular portion of blood contains red blood cells (RBCs), white blood cells (WBCs) and platelets. The RBCs carry oxygen from the lungs. The WBCs help to fight infection, and platelets are parts of cells that the body uses for clotting. All blood cells are produced in the bone marrow.
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☆☆ RBCs or Erythrocytes ☆☆
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▪Present 4.5 to 5.5 million RBCs in per cubic milimetre of blood.
▪They are red in colour due to presence of haemoglobin.
▪ They are biconcave disc in shape.
▪ They are formed by Red Bone Marrow cells.
▪ Life Span of RBCs is 120 days after these days, they destroy in "spleen" [ a part of the body where RBCs destroyed ] which is known as " Graveyard of RBCs " .
▪ They help in transport of gases [ major part of oxygen (90%) & carbon dioxide (20-25%) ].
▪ They have no nucleus in mammals except Camel.
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☆☆ WBCs or Luecocytes ☆☆
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▪ Leucocytes or WBCs are 5000-8000 present in per cubic mm of blood.
▪ They are colourless due to lack of haemoglobin.
▪ Life Span of WBCs is 1-4 days [ short lived ].
▪ They are formed in White Bone Marrow , lymph , nodes, spleen and thymus.
▪ They acts as a soldiers , seavengers of the body and some help in healing.
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↪ Hope this will help you ↩
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☛ ⛧⛧ By, Ⓜr. Thakur ⛧⛧
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