Question

Why do veins have thin walls as compared to arteries?

Answer 1

As we already know arteries and veins are the two types of blood vessels. These both also have their types. These are performed as the channels that distributes blood to our body. Here we are going to see about both arteries and veins. Their walls are also explained here by using some definitions. Through this, it could be analyzed.

Complete answer:
Arteries is the type of the blood vessels that are responsible for taking the blood away from the heart to one or more parts of our body. Most of them carry oxygenated blood. This is the muscular-walled tube that forms the part of the circulatory system by which the oxygenated blood is conveyed from heart to all parts of the body. There are three types of arteries. They are mentioned below:

Elastic arteries
Muscular arteries
Arterioles
They help in the removal of wastes such as carbon dioxide and urea that are formed in the cellular formation. As arteries carry blood from heart to all parts of the body, they have thick and elastic walls as they are under high pressure. They are carefully lifted from the trigeminal nerve and Teflon like material that are interposed between the vessel and the nerve.
Veins are also the type of blood vessels that are responsible for carrying the blood towards the heart. These collect the blood from the various parts of the body and bring it back to the heart. Most of them carry deoxygenated blood. These are the blood vessels that carry blood low in the oxygen from the body back to the heart for reoxygenation. There are four types of veins. They are mentioned below:
Deep veins
Superficial veins
Pulmonary veins
Systemic veins
These are the flexible blood vessels. These are the parts of the cardiovascular system that circulates the bloodstream to supply both vitamins and minerals to the cells. These act as the reservoir cells. It has the ability to stretch the veins known as capacitance. These have thin walls when compared with the arteries because arteries carry the blood from the heart. They withstand the pressure that has thick walls whereas veins have low pressure. As they have low pressure, they have thin walls.

Note: Arteries and veins are the vessels that distribute blood to the body. Nutrients and the oxygen are delivered to each of the cells through the circulatory system. This removes carbon dioxide and waste products and supports the elements of the immune system. The main difference in both arteries and veins is veins are involved in removing the cellular wastes from extracellular environments whereas arteries help in providing nutrients to body cells.