Question

Give reason :

septum prevents mixing of oxygenated and deoxygenated blood.

Answer 1

Septum separates the right side of the heart from the left side. Interventricular septum is present between the right and the left ventricle wheareas interauricular septum is present between the right and left auricle. Thus it prevents mixing of oxygenated blood(left) and deoxygenated blood(right).