Question

What is the colour of oxygen-poor blood?

Is the colour of oxygen-poor blood blue/purple or is this inaccurate?

Answer 1

Yes it is inaccurate, cause the blood can either be dark-red (poor oxygenated blood) or red (oxygenated blood)

Explanation:

arteries - red (carries oxygenated rich blood [red])

veins - blue (carries poor oxygenated red [dark red])

Blood in the veins has very little oxygen and is a dark red color that looks almost blue when covered by your skin..

The arteries have bright red blood because it has a lot of oxygen in it that is being carried throughout the body to be used by tissues..