Changes

Whilst in the centrifuge the red blood cells separate and fall to the bottom leaving a layer of yellow plasma on top. The plasma can consequently be drawn off.

Whilst in the centrifuge the red blood cells separate and fall to the bottom leaving a layer of yellow plasma on top. The plasma can consequently be drawn off.

Blood plasma is to be distinguihed from serum which is plasma without fibrinogen which is separated following the clotting process.

Blood plasma is to be distinguihed from '''serum''' which is plasma without fibrinogen which is separated following the clotting process.