The levator costae brevis is a part of our back muscles.

The levator costae is one of the muscles that lift the ribs.

The levator costae longus is a part of our back muscles.

He is working out his muscles at the gym every day.

He was carrying a large load on his back.

She had an ophthalmologist examine her levator muscle problem.

Part of this movie is based on actual events.

He broke his rib.

He broke his rib.

I strained a muscle at the gym yesterday.