Question

How many chambers are found in human heart?

• A. 1
• B. 2
• C. 3
• D. 4

Hint:

Four-chambered hearts are found in birds and mammals for efficient oxygen supply.

Answer 1

The Correct Option is D

Step 1: Recall.
The human heart has four chambers: two atria (upper) and two ventricles (lower).
Step 2: Importance.
This separation allows efficient double circulation: oxygenated and deoxygenated blood remain separate.
Step 3: Conclusion.
Hence, human heart has 4 chambers.