Question

Assertion (A): Valves are present in the arteries.

Reason (R): Arteries carry oxygenated blood from heart to different body parts except pulmonary artery.

Options

• Both A and R are true and R is the correct explanation of A.

• Both A and R are true but R is not the correct explanation of A.

• A is true but R is false.

• A is false but R is true.

Answer 1

A is false but R is true.

Explanation:

The assertion is false because arteries lack internal valves. Arteries do not require valves because the heart pumps blood out under extremely high pressure, ensuring it travels rapidly in a single, unidirectional path with zero risk of backflow. However, the reason is entirely true because it accurately details the anatomical rule of circulation: all systemic arteries carry oxygen-rich blood away from the heart to sustain body tissues, with the unique exception of the pulmonary artery, which routes oxygen-depleted blood to the lungs.