Question

Which of the following sentences is false?

• A. Arteries are thin walled.
• B. Alveoli are richly supplied with blood vessel.
• C. Inner walls of Small Intestine have microvilli.
• D. Oxygen is carried by RBC.

Answer 1

The correct option is A

Arteries are thin walled.

Arteries are thick-walled so that they can sustain the high blood pressure exerted by the heart. On the other hand, veins carry blood at low pressure from the tissues so they have thin walls.