blood - Blood Blood Bytheendofthelessonyoushouldbeableto:

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Blood Blood By the end of the lesson you should be able to: State the composition of Blood State the function of red blood cells and plasma Explain the function of haemoglobin in the transport  of oxygen State the function of macrophages and lymphocytes
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the average human has 5 litres of blood it is a transporting fluid it carries vital substances to all parts of the body Blood Blood
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Human blood smear Human blood smear X 500
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plasma (55%) red blood cells (5-6-million /ml) white blood cells (5000/ml) platelets skool blood plasma
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x 1000
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Plasma liquid part of blood plasma transports:- soluble food molecules waste products hormones  antibodies
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Red blood cells   (RBCs) transport  oxygen specialised to do this Also carry some CO 2
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the  b o die s  “ defence pa rt o f the  im m une  s ys te m m uc h  larger  tha n RBC s
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blood - Blood Blood Bytheendofthelessonyoushouldbeableto:

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