Question

Fill in the blanks :
(i) Ventricles have walls when compared with those of atria.

Answer 1

Solution: Thicker.

• The ventricles (both right ventricle and left ventricle) have thicker walls as compared to the two atria because the ventricles have to pump blood to very long distances.
  
• The right ventricle pumps deoxygenated blood to the lungs for oxygenation.
  
• The left ventricle pumps the oxygenated blood to all the parts of the body.