التركيب والوظيفة فى الكائنات الحية: دور العضلات فى الحركة

The video tutorial explains the role of the muscular system in enabling movement and activities. It describes how muscles generate mechanical energy through contraction and relaxation, using the example of arm movement. The importance of caring for the muscular system is highlighted, emphasizing the role of tendons in connecting muscles to bones.

What is the primary function of the muscular system?

• To enable movement and activities

• To produce energy

• To digest food

• To circulate blood

How do muscles facilitate movement?

• By growing and shrinking

• By expanding and contracting

• By heating and cooling

• By hardening and softening

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

• It relaxes

• It shortens

• It contracts

• It stretches

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

• To increase lung capacity

• To improve skin elasticity

• To enhance bone density

• To prevent muscle fatigue

What connects muscles to bones?

• Nerves

• Tendons

• Cartilage

• Ligaments