Question

Choose the correct answer from the alternatives given.
Which of the following represents the pulmonary circulation as the blood flows from
the right ventricle?

• A. Pulmonary trunk $\to$ pulmonary veins $\to$ pulmonary capillaries $\to$ pulmonary arteries
• B. Pulmonary arteries $\to$ pulmonary capillaries $\to$ pulmonary trunk$\to$ pulmonary veins
• C. Pulmonary capillaries $\to$ pulmonary trunk $\to$ pulmonary arteries $\to$ pulmonary veins
• D. Pulmonary trunk $\to$ pulmonary arteries $\to$ pulmonary capillaries $\to$ pulmonary veins

Answer 1

Answer: (D)

Pulmonary trunk $\to$ pulmonary arteries $\to$ pulmonary capillaries $\to$ pulmonary veins

Pulmonary circulation is the system of blood vessels that form a closed circuit between the heart and the lungs, as distinguished from the systemic circulation between the heart and all other body tissues. Deoxygenated blood leaves from the right ventricle through the pulmonary trunk which branches into the left and right pulmonary arteries to reach pulmonary capillaries in the lungs. At the lungs, blood gets oxygenated and returns to left atrium of heart via pulmonary veins

So, the correct option is 'Pulmonary trunk $\to$ pulmonary arteries $\to$ pulmonary capillaries $\to$ pulmonary veins'.