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• Blood plasma 

• Tissue fluid

• Lymph• Red blood cells

• White blood cells

CHAPTER 8. THE MAMMALIAN

 TRANSPORT SYSTEM

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BLOOD

PLASMA

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• Pale yellow fluid

• Made up of :

• Water • Nutrients

• Waste products

• Plasma proteins

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 TISSUEFLUID

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• Blood plasma with fewer plasma protein

• Red blood cells – too large

• White blood cells – some can squeee

through

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Blood pressurehigh

Lower osmotic

pressure

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LYMPH

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• !"# tissue fluid return to blood system by

lymphatics

• $al%es allowing large protein molecules to

pass through

• Protein conc & rate of loss in plasma '

Protein conc & rate of loss in tissue fluid

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M($)M)N*+

• Muscles around %essels

• $al%es

• +mooth muscles in walls

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,ymph nodes

Remo%e unwanted

particles

+ecretes

 antibodies

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RED BLOODCELLS

(ERYTHROCYTES)

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• Red

• -lobular protein

•.oetus – li%er 

  born – bone marrow

• Rupture in spleen

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• Biconca%e disc shape

• $ery small – haemoglobin close to surface

• .le/ible – ha%e specialised cytos0eleton

• No nucleus1 no mitochondria1 no )R

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WHITE BLOOD CELL

(LEUCOC YTES)

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• 2a%e nucleus

• ,arger than red blood cells

• +pherical or irregular 

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WBC

Phagocytes

Lobed

nucleus

Granular

cytoplasm

Lymphocytes  Large round

nucleus

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 THE

END.