Question

9 Give one difference
between artery and vein​

Answer 1

Answer:

Arteries -Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body.

Veins ‐Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.

Explanation:

Arteries

They carry blood from the heart to the different parts of the body.

They have thick muscular walls and narrower lumen. They have thinner walls and lumen is not

Vein

They carry blood from the different parts of the body to the heart.

They have thinner walls and lumen is not narrow

Answer 2

Answer:

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.

Explanation:

Hope it helps you ✌️✌️