Flow of Blood through the heart

Consider the following statements

1. Blood returning from the lungs enters the left atrium passes into the left ventricle and is then

circulated in the body

2. Blood from the body collects in the right atrium, passes into right ventricle and is then pumped to

the lungs

3. Blood from the body collects in the left atrium, passes into the left ventricle and is pumped to the

lungs

Which of the statements given above is/are incorrect?

(A) 3 only                                               (B) 1 and 2 only

(C) 2 and 3 only                                         (D) 1, 2 and 3

EXPLANATION

Statement 1:

Blood returning from the lungs enters the left atrium, passes into the left ventricle and is then circulated in the body.
✅ This is correct.

• Oxygenated blood comes from the lungs → enters left atrium → left ventricle → pumped to the body.

Statement 2:

Blood from the body collects in the right atrium, passes into right ventricle and is then pumped to the lungs.
✅ This is correct.

• Deoxygenated blood from the body enters right atrium → right ventricle → pumped to the lungs for oxygenation.

Statement 3:

Blood from the body collects in the left atrium, passes into the left ventricle and is pumped to the lungs.
❌ This is incorrect.

• Blood from the body goes to the right atrium, not the left.

• Left atrium receives blood from the lungs, not the body.

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✅ Correct Answer:

(A) 3 only is incorrect.
So, Option A is the right answer.