ong>Explanation:

ARTERIES VEINS

Functions

Involved in carrying oxygenated blood EXCEPT for pulmonary arteries Involved in carrying deoxygenated blood except for pulmonary veins

Walls

Consists of three distinct LAYERS, which are rigid, thicker and highly muscular. Consists of three distinct layers, which are thinner and less muscular.

Position

Located deep within the body. Peripherally located closer to the skin.

Appearance

Red in COLOUR. Blue in colour.

Transports

Carry blood away from the heart to various parts of the body. Carry blood towards the heart from the various parts of the body.

Rate of pressure

High pressure, as the blood flows by the pumping pressure of the heart. Low pressure, as the blood flows by the capillary ACTION of the veins.

Oxygen Level

Comparatively higher oxygen level. Comparatively low oxygen level.

Carbon dioxide Level

The level of carbon dioxide is low The level of carbon dioxide is high

The direction of Blood Flow

In the DOWNWARD direction from the heart to the body tissues. In the upward direction from the body tissues to the heart.

Lumen

Lumen is narrow. Lumen is wide.

Valves

Valves are absent Valves are present

Disorders

Arteries are at a greater risk of certain diseases like angina pectoris, atherosclerosis, etc. Veins are less susceptible to diseases such as varicose veins.