Question

The pumping action of the heart is due to the

• A. Bones of the heart
• B. Muscles of the heart
• C. Spaces in the heart
• D. Both B and C

Answer 1

The correct option is D Both B and C

The Human circulatory system consists of a muscular four-chambered heart, a network of closed branching blood vessels and blood, the fluid which is circulated. The heart is a 4 chambered muscular organ present in the thoracic cavity in between the lungs. it does not have any bones. The chambers(spaces) of blood are filled with blood.T he muscular action of heart walls pump blood throughout the body through blood vessels. Hence the pumping

So, the correct answer is 'Both B and C'.