Which of the following is the correct sequence of blood flow through heart chambers?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Right atrium → Right ventricle → Left atrium → Left ventricle.
The heart functions as a double pump. Deoxygenated blood returns from the body into the Right Atrium, then passes into the Right Ventricle, which pumps it to the lungs for oxygenation.Once oxygenated, blood returns to the Left Atrium and moves into the Left Ventricle. As the strongest chamber, the left ventricle pumps this oxygen-rich blood through the aorta to the entire body. All the other options are incorrect.