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NAME : M.RAFFY HAFIZY BIN MASMADI.NO IC : 941217-06-5759.IDENTITY NUMBER : CJ012 A009.TITLE : CIRCULATORY SYSTEM

SMK PADANG PIOL

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Objective :To introduce student about circulatorysystem.To introduce student about heart.We can know about human blood vessels.To introduce student about structrure inheart.

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MENU :What is circulatory?

The bloodThe blood vesselsThe heart

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Circulatory system :The circulatory system transports nutrients andoxygen to cells and the same time carrieswaste materials away from the cells.Thecirculatory system has three component :The blood The hearthe bloodvessel

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The heart :Theheartis a muscular pump thatcirculates blood troughout the body.The structure.

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Structure of heart :

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The blood :Blood is a type of conective tissue madeup liquid plasma, suspended blood cellsand platelets.Blood transport oxygen from the lungs tothe cells troughout the body, and carbondioxide from the cell to the lungs.The composition of human blood.

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Composition of human blood :Human blood is made up 55% plasma and45% cellular components.The plasma is the main transport medium inthe body.The constituents and major functions ofeach consituent in the plasma aresummarised in the table 1.1

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Table 1.1 :

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Cellular component :

PlateletsLeucocytes

Erythtrocytes

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Erythrocytes (red blood cell) :Shape like a biconcave disc.It is thinner at the centre that at its edges.Not have a nucleus.It is small.(7.5 micrometre in diametre)Have heamoglobin.Heamoglobin is an oxygen-carrying protienpigment which give the erithrocytes itsredcolour.

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Leococytes (white blood cell) :Colourless and have nucleus.Larger than red blood cell.Leococytes are classified as either granular andagranular.Granular include:-neutrophils-eosinophils-basophilsAgranular include:-lymphocytes-monocytesBack MENU

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Platelets :Cell fragment from bone marrow.No nucleus.Involved in the process of bloodclothing.

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The blood vessel :Arteries

CapillariesVeins

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Arteries :It is made up three layers.It is thick.It is elastic and muscular.

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Capillaries :It is only one cell thick.It is very thin.It is not muscular.

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Veins :It is made up of three layers.It is thin.It is less muscular and less elastic.

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Reference :ttp://www.essortment.com/all/humancirculat_rdgf.htmhttp://www.cliffsnotes.com/study_guide/Huma

n-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.kidport.com/reflib/science/humanbody/heart.htm

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http://www.essortment.com/all/humancirculat_rdgf.htmhttp://www.essortment.com/all/humancirculat_rdgf.htmhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.kidport.com/reflib/science/humanbody/heart.htmhttp://www.kidport.com/reflib/science/humanbody/heart.htmhttp://www.kidport.com/reflib/science/humanbody/heart.htmhttp://www.kidport.com/reflib/science/humanbody/heart.htmhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.cliffsnotes.com/study_guide/Human-Circulatory-System.topicArticleId-8741,articleId-8711.htmlhttp://www.essortment.com/all/humancirculat_rdgf.htmhttp://www.essortment.com/all/humancirculat_rdgf.htm

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THANKYOU.

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