Question

Which of the following shows contraction and relaxation for movement?

• A.
  Cartilage
• B.
  Muscles

Answer 1

The correct option is B

Muscles

• Muscles: They are tissues attached to the skeletal system and is responsible for body movement. They always work in pairs. When one of them contracts, the bone is pulled in that direction, while the other muscle of the pair relaxes.
• Cartilage: They are soft and flexible tissues which acts as a cushion between two bones and are also present at the tip of nose and the earlobes.