Brachialgia means pain in the:

A) neck.
B) arm.
C) chest.
D) leg.

Brachialgia

Pain in the arm, specifically referring to nerve pain that can be caused by various conditions affecting the brachial plexus or surrounding nerves.

Arm

A limb on the human body extending from the shoulder to the wrist, including the forearm and upper arm.

Pain

A distressing feeling and emotional response linked to real or possible harm to the body, or defined by reference to such harm.