The graph illustrates the percentage saturation of haemoglobin with oxygen over a range of partial pressures of oxygen, with two different partial pressures of carbon dioxide shown. One curve is drawn for the partial pressure of carbon dioxide in the lungs, and the other curve is drawn for the partial pressure of carbon dioxide in the liver. Which points on the curves represent the percentage saturation of haemoglobin in the lungs and in the liver?
- AL and J
- BL and K
- CM and J
- DM and K