Question

multiple choice question
in the pulmonary circuit, the pulmonary trunk branches into ______.

lobar veins

pulmonary veins

lobar arteries

pulmonary arteries

Explanation:

In the pulmonary circuit, the pulmonary trunk (a large artery carrying deoxygenated blood from the right ventricle) branches into the right and left pulmonary arteries, which carry blood to the lungs. Lobar veins carry oxygenated blood away from lung lobes, pulmonary veins return oxygenated blood to the heart, and lobar arteries are smaller branches within the lungs (from pulmonary arteries). So the correct answer is the option related to pulmonary arteries.

Answer:

D. pulmonary arteries (assuming the options are labeled A to D as: A. lobar veins, B. pulmonary veins, C. lobar arteries, D. pulmonary arteries)