Red blood corpuscles class 9
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RED BLOOD CORPUSCLES Prepared by, RESHMA. M.S. B.Ed. Natural Science Candidate Code: 18114386012 St. Thomas Training College Mukkolakkal Thiruvananthapuram
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Transcript of Red blood corpuscles class 9
RED BLOOD CORPUSCLES
Prepared by,RESHMA. M.S.B.Ed. Natural ScienceCandidate Code: 18114386012St. Thomas Training CollegeMukkolakkalThiruvananthapuram
Blood vesselRed blood cell
platelet
Plasma
White blood cell
Cellular Elements of Blood
1. Red Blood Cells2. White Blood Cells
3. Platelets
Red blood cells (erythrocytes)
Red blood cells are biconcave discs
erythrocytes
RBC’S (Erythrocytes) Shape - a biconcave
disc with large surface area
Can change shape No Nucleus /
organelles Contains hemoglobin Short Life Span
(~120 days)
Cont. Haemoglobin is the protein
molecule that makes up 95% of a red cell.
The red colour of blood is primarily due to oxygenated red cells.
Primary Function = Transport oxygen from the lungs to the cells of the body & assist with CO2 removal
Haemoglobin
Molecules of haemoglobin account for 95% of the proteins in RBCs
Haemoglobin is a gas transporting protein molecule
“Sickling” in Red Blood Cells
RBC Production Erythropoeisis = the formation of new
red blood cells
Occurs in red bone marrow
FUNCTION OF RED BLOOD CELLS
Too few, Too many Anaemia – deficiency in Red Blood
Cells
Polycythemia - abnormally high number of RBC’s in circulation
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