Our bones

        Skull                          ribs

      humerus                 spine

   hips                               femur

Bones are hard and rigid.

Our muscles

1. biceps,

2. pectoral muscles,

3. abdominal muscles,

4. gluteus,

5. quadriceps

6.  calf muscles.

Muscles contract and relax.

Our bones and muscles help us move.

Our locomotor system is made up of bones and muscles.