Question

Blood vessels that lack valves are

• A. Arteries
• B. Vein
• C. Both
• D. None of These

Answer 1

The correct option is A

Arteries

The correct option is A.

Explanation of correct option:

In the human body, there are tine loop shape tubes or channels present that carry blood throughout the body. The blood vessels are of mainly three types: arteries, veins, and capillaries. Capillaries are the smallest blood vessels that join the other two blood vessels.

• Arteries are the blood vessels that carry the blood from the heart to various organ systems.
• Arteries do not require valves in them, as the heart pumps blood at high pressure that maintains its flow direction towards the tissues and organs far from the heart.

Explanation of incorrect options:

Option B: Vein has valves in it as it has to maintain the flow of blood one-directional which is towards the heart.

Option C: It can not be both, as veins have valves in them.

Option D: This option is invalid, as option A is correct.

Arteries are the blood vessels that lack valves.