How to say back in Spanish

The Spanish word for back is espalda.
How to pronounce espalda in Spanish:
Click to hear the pronunciation of espalda  
Examples of espalda in Spanish:
Me duelen la cabeza y la espalda.
My head hurts and my back hurts.

Sara se lastimó la espalda ayer.
Sara hurt her back yesterday.

¿Cómo te lastimaste la espalda?
How did you hurt your back?

Do you know another example that uses back in Spanish? Please tell us where you read or heard it (including the quote, if possible).