The video explains the role of the muscular system in enabling movement and activities. It details how muscles generate mechanical energy through contraction and relaxation, using the example of arm movement. The importance of caring for the muscular system and the role of tendons in connecting muscles to bones are also discussed.

What is the primary function of the muscular system?

• To digest food

• To circulate blood

• To enable movement and activities

• To produce hormones

How do muscles generate movement in the body?

• By changing color

• By vibrating

• By growing and shrinking

• By expanding and contracting

What happens to the front muscle of the arm when you lift your arm?

• It relaxes

• It contracts

• It stretches

• It vibrates

Why is it important to take care of our muscular system?

• To improve skin texture

• To enhance brain function

• To maintain body movement and strength

• To increase hair growth

What role do tendons play in the muscular system?

• They regulate temperature

• They produce energy

• They store fat

• They connect muscles to bones