Hannah has damaged her left deltoid muscle. Which of the following actions would least likely be affected by the damage?

A) Moving her arm medially
B) Moving her laterally
C) Rotating her arm at the shoulder
D) All of the choices are correct.

Deltoid Muscle

A large triangular shoulder muscle responsible for lifting the arm and giving the shoulder its range of motion.

Moving Medially

The action or direction of moving toward the midline of the body or point of reference, opposite of moving laterally.

Rotating Arm

A mechanical component that pivots around an axis to move objects or apply force, often found in robotic systems and machinery to facilitate a wide range of motion.