Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.
Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.
- The human heart has 4 different chambers which prevent mixing of oxygenated and deoxygenated blood due to the partition between two sides called septum .
- Valves are present in the heart to prevent backflow of blood i.e., to allow the movement of blood in one direction only.
- The assertion is True
- The reason is True
- But the reason is not the correct explanation for the assertion.
So, the correct answer is (b).