Muscles

The muscles in your arms are called the (a)   and triceps

Antagonistic muscles work:

• In pairs

• On their own

Muscles are connected to bones by:

• Tendons

• Fixtures

• Cartilage

• Ligaments

When the bicep muscle contracts: The tricep

• contracts

• relaxes

• does not do anything

When the tricep contracts, the bicep:

• contracts

• relaxes

• does not do anything

When you bend your arm, which muscle is contracting?

• Biceps

• Triceps

When you extend your arm, which muscle relaxes?

• Biceps

• Triceps

When we say a muscle contracts, it means that the muscle:

• Expands

• Lengthens

• Shortens

Can bones move on their own?

• Yes

• No

Answer explanation

The contraction of muscles bring about skeletal movement.

When the bicep contracts, there is movement at the joint in your elbow. What type of joint is this?

• A fixed joint

• A hinge joint

• A ball-and-socket joint