Year 4 muscles

Muscles in your body move in _________.

• points

• their own way

• pairs

Name the highlighted muscle

• tricep

• bicep

• bicep femoris

• extensor longus

Name the highlighted muscle

• triceps

• biceps

• rectus femoris

• trapezius

Muscles work in pairs. When one contracts, the other.....

• Gets bigger

• Relaxes

• Moves antagonostically

• Contracts as well

When a muscle contracts, it _______

• gets longer
• gets shorter
• gets thinner
• grows hair

The main purpose of the muscular system is to....

• Transport nutrients, materials, and gases

• Move the body

• Break down food for nutrients

• Help with gas exchange

What happens when the bicep relaxes?

• the tricep relaxes

• the tricep contracts

• the bicep relaxes

• the bicep freezes

What happens when the bicep contracts?

• the tricep relaxes

• the tricep contracts

• the bicep relaxes

• the bicep freezes

Muscles pull on _______ to help you move.

• Body parts

• Other muscles

• Bones

One muscle _______ and the other _______.

• works, works harder

• contract, relaxes