Oxygen transport

02TRANSPORT INBLOOD
Cyanosis
The abnormal bluish discolouration of the skin and mucous
due to
membranes high levels of deoxygenated Hb

A Peripheral Decreased blood flow

and increased oxygen extraction C blue
extremities




B Central Low Hb saturation or abnormal
Hb C lips mucous membranes tongue are

blue




Partial pressure
Dalton's law States
that the total pressure

exerted by the mixture of

intent gases is equal to
the sum of the partial
pressures of the individual

gases in a volume of air

, The partial pressure
of a
gas in solution is
the partial pressure the

gas would need in the
gaseous phase to
equili
with
te ria that solution

Henry's law States that
the number of molecules dissolving in a liquid is directly

proportional to the partial pressure of the gas

Carriage of oxygen as
oxyhaemoglobin in blood
H b t 02 Hb 02

Ig Hb combines w I l 34 ml of Oz
With 1 Sog IL blood contains a

Max of 200 m l l L 02 bound to
Hb Oxygen carryingcapacity
ma x amount 02 that can combine

with Hb

Oxygen Sats Volume of oxygen bound to Hb ML L

Oxygen Cm Llc Cx too
capacity