Question

The diagram shows a vertical section through the heart.
What are the functions of the numbered blood vessels?
A. (a)
B. (b)
C. (c)
D. (d)

Answer 1

Explanation:

option (a)is the answer

Answer 2

Functions of the following numbered blood vessels:

A) 1 - This blood vessel carries oxygenated blood from the heart to all over the body parts.

B) 2- This blood vessel carries deoxygenated blood from the upper part of the body to the heart.
C) 3- This blood vessel carries deoxygenated blood from the heart to the lungs.

D) 4- This blood vessel carries oxygenated blood from the lungs to the heart.

• The blood vessels of the circulatory system are of two types: Arteries and veins.
• Usually, arteries carry oxygenated blood and veins carry deoxygenated blood.
• The Superior vena cava carries and transports deoxygenated blood from all tissues of the body to the heart.
• Aorta carries and transports oxygenated blood from the heart to all the tissues of the body.
• The Pulmonary artery is an exception as it is an artery that carries and transports deoxygenated blood from the heart to the lungs.
• The Pulmonary vein is also an exception as it is a vein that carries and transports oxygenated blood from the lungs to the heart.