Biologists often show oxygenated blood as red, and deoxygenated blood as blue. This is just a way of illustrating it in biological diagrams. It's also helpful in showing the different regions of the ...

Having more severe chronic lung disease does not predict worse pulmonary hypertension outcomes in infants born preterm, a new study found.

Plasma is a straw-coloured liquid that makes up just over half the volume of blood. You have about 5.5 litres of blood in your body That’s is the same amount of liquid as there is in these cola ...