To move an arm, the brain sends a message that causes the chest muscles to tighten.

VOA: special.2009.03.10

Curiosity even has an arm that can touch things and send the information back to Earth.

VOA: special.2011.04.26

We will also tell about a new treatment for people who have lost an arm.

VOA: special.2009.03.10

People can become disabled. They may even need to have an arm or leg removed.

VOA: special.2009.04.06

Sometimes they pay an arm and a leg for something.

VOA: special.2009.10.18

Romel Joseph suffered injuries to an arm and both legs.

VOA: special.2010.02.01

Spirit and Opportunity have wheels, an arm and camera eyes.

VOA: special.2010.07.28

But men like 85-year-old Don Seki, who lost an arm to a burst of machine-gun fire, play-down his own heroism in helping to rescue the "Lost Battalion."

VOA: standard.2009.11.04

The man in the soft felt hat, kneeling by the reclining woman and supporting her with an arm wrapped around her shoulders bears a striking resemblance to a certain fictional archaeologist.

VOA: standard.2010.08.09

He decided to have his arm set at an angle so that he could keep playing the guitar.

VOA: special.2009.09.27

Their goal was to seize the federal arsenal and use the weapons to arm an anti-slavery rebellion.

VOA: special.2009.11.06

An electrical signal is then sent to the prosthetic arm, telling it to move.

VOA: special.2009.03.10