Question

I am having tough fibrous coat, large lumen,thin muscle layer and valves. Who am I? ​

Answer 1

The correct answer is : Veins

Explanation:

• Veins have a large lumen.
• In arteries, valves are not needed as unidirectional flow of blood is maintained by the high pressure with which blood is pumped into the arteries from the ventricles of the heart.
• Blood flow with comparatively lesser pressure in veins and so chances of back flow of blood is high. Valves are necessary for maintain unidirectional blood flow.
• The muscle layer surrounding the veins is thinner as compared to the arteries.
• The outer coat of the vein is tough and fibrous in nature.

Answer 2

All these are the characters of vein

Explanation:

1. Veins are blood vessels that carry blood to the heart.
2. It is present through out the body.
3. The color of vein is translucent and thus it can be seen from outside.
4. Veins are of different types- Superficial, deep vein,perforated,communicating,pulmonary,systematic etc.
5. It is bluish color that permits the entry of blue light to the veins.