what is RBC this question is from class 10
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RED BLOOD CORPUSCLES
(R.B.C)
⇒ It is also known as erythrocytes.
⇒ R.B.Cs of mammals are non-nucleated except camel.
⇒ Salamander has largest R.B.Cs, about 80 µ m in diameter.
⇒ Musk dear has the smallest R.B.Cs, about 1.5 µ m.
⇒ It is Biconcave in shape.
⇒ Life span in man is 120 days and number is 5000000/ cu mm.
⇒ Bone marrow is the main site for formation of R.B.C.
⇒ Haemoglobin (Hb) is filled in R.B.C, which gives red color to it and act as vasculatory or respiratory pigment.
⇒ Amount of Haemoglobin is measured or calculated by Shali's haemometer.
⇒ In male (15-16 gm%), female (13-14 gm%) and in child (16.5 gm%) haemoglobin is present.
⇒ If Hb percentage falls anaemia arises.
FUNCTIONS OF R.B.Cs
⇒ Haemoglobin of R.B.Cs readily combines with oxygen to form oxyhaemoglobin.
⇒ In the tissues , oxyhaemoglobin readily gives up its oxygen.
⇒ R.B.Cs transport CO₂
⇒ CO₂ combines with potassium carbonates of R.B.Cs to form potassium bicarbonate.