Question

Which of the following blood vessels has a thick middle layer of smooth muscles and elastic fibres.

• A. Arteries
• B. Arterioles
• C. Veins
• D. None

Answer 1

The correct option is A

Arteries

The correct option is A:

1. Blood vessels are hollow tubes that help in blood circulation.
2. Blood vessels have been divided into three types: arteries, veins, and capillaries.
3. Arteries have a thick middle layer of smooth muscles and elastic fibers. It helps in the transportation of oxygenated blood.

Option B:

Arterioles are the branches of arteries and have thinner walls than arteries.

Option C:

Veins are thin muscular layers consisting of semilunar.