Let's play! - Locomotor system

❌ are hard and rigid.

❌ are soft and elastic.

❌ contract and relax.

❌ form the skeleton.

The elbow is a ❌.

The wrist is a ❌.

The ribs are ❌.

The bicecps are ❌.

The ankle is a ❌.

The spine is a ❌.