Question

Due to contraction of the right ventricle blood is pumped into the:

• A. Pulmonary vein
• B. Pulmonary artery
• C. Coronary sinus
• D. Coronary artery

Answer 1

The correct option is B

Pulmonary artery

The correct option is option B.

Explanation of the correct option:

1. The right ventricle pumps blood into the pulmonary artery from where it goes to the lungs alone.
2. The opening of the right ventricle to the right atrium is guarded by the tricuspid valve.
3. During ventricular contraction, this valve prevents the backflow of blood to the right atrium.

Explanation of the incorrect options:

Option A:

The pulmonary vein brings oxygenated blood from the lungs and has no valves.

Option C:

1. The coronary sinus lies between the left ventricle and the left atrium.
2. It brings deoxygenated blood from the heart wall.

Option D:

1. It arises from the systemic aorta.
2. It provides oxygenated blood to the heart wall.

Final answer: Due to contraction of the right ventricle blood is pumped into the pulmonary artery.