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TRANSPORT OF CO2 IN

THE BLOOD

DR AMNA TAHIR

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Difusion o CO2 rom the peripheral

tissue cell into the capillaries

• CO2 can difuse 20 times as rapidly as

oy!en

• Intracellular "CO2 #$% mmH!

• Interstitial "CO2 #$&mmH!• "CO2 o the arterial 'lood enterin! tissue#

$0mmH!

• "CO2 o the (enous 'lood lea(in! the

tissue# $&mmH!

• )fect o rate o tissue meta'olism and tissue'lood *o+ on Interstitial "CO2

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us on o 2 rom

the pulmonr!

"pillries into l#eoli• "CO2 o the 'lood enterin! thepulmonary capillaries at arterial end# $&mmH!

• "CO2 o the al(eolar air #

$0mmH!

•

"CO2 o the 'lood lea(in! thepulmonary capillaries at (enous end# $0mmH!

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TRANSPORT OF CO2 IN THE

BLOOD

$ml o CO2  is transported rom the tissues to the

lun!s in each ,00ml o 'lood

Chemi"l orms in $hi"h CO2 is

trnsporte%  transport o CO2  in dissol(ed orm

transport o CO2  in orm o

'icar'onate ion transport o CO2  in com'ination +ith

Hemo!lo'in and "lasma proteins

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