Question

(a) Name the blood vessel that brings deoxygenated blood to the human heart.
(b) Which chamber of the human heart receives deoxygenated blood?
(c) Describe how deoxygenated blood from this chamber is sent to lungs for oxygenation.

Answer 1

Answer:

a)venacava

b)right atrium and ventricle

c)deoxygenated blood is sent by the help of pulmonary artery

Answer 2

(a) The blood vessel that brings deoxygenated blood to the human heart is vena cava.

• There are two types of vena cava namely superior and inferior vena cava.
• The superior vena cava returns deoxygenated blood from upper part of the body.
• The inferior vena cava returns deoxygenated blood from lower part of the body.

(b) Right atrium of the human heart receives deoxygenated blood.

(c) Deoxygenated blood from right atrium is sent to lungs for oxygenation:

• The right atrium pumps the deoxygenated blood to right ventricle.
• The pulmonary artery takes deoxygenated blood from right ventricle to lungs.
• In lungs, the exchange of gases takes place in blood where deoxygenated blood is oxygenated to oxygenated blood.
• Pulmonary veins carries oxygenated blood from lungs to left atrium.