Carbon dioxide transport
Under normal resting conditions 100ml of deoxygenated blood contains 55ml of CO2. This is carried by the blood in two main forms.
· Dissolved CO2 the smallest percentage, about 7% dissolved in plasma. Upon reaching the lungs, it diffuses into the alveoli.
· Carbaminohaemoglobin a higher percentage, approx. 23% combines with the globin portion of haemoglobin to form Carbaminohaemoglobin ( Hb.Co2)
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