Question

multiple choice question
which circuit has arteries with thin distensible walls with less elastic tissue?

systemic circuit

pulmonary circuit

there is no difference in arteries between the systemic and pulmonary circuits.

Explanation:

To determine the correct answer, we analyze the characteristics of arteries in the systemic and pulmonary circuits. The pulmonary circuit's arteries (pulmonary arteries) carry deoxygenated blood at lower pressure compared to systemic arteries. This lower pressure means pulmonary arteries have thinner, more distensible walls with less elastic tissue. Systemic arteries (like aorta) need thicker, more elastic walls to handle high - pressure blood flow. So the pulmonary circuit arteries match the description.

Answer:

B. Pulmonary circuit