Ulna: Forearm bone that runs from the tip of the elbow to the little finger side of the wrist.
Ulnar Collateral Ligament: A band or sheet of fibrous tissue connecting two or more bones, cartilages or other structures, or serving as support for fasciae or muscles; located on the inside of the elbow. (Ligament that was replaced or repaired for the “Tommy John” surgery.)
Ulnar Nerve: Nerve in the elbow commonly irritated from excessive throwing.
Ultrasonography: Process by which the reflection of high-frequency sound waves is used to develop an image of a structure.
Ultrasound: An electrical modality that transmits a sound wave through an applicator into the skin to the soft tissue in order to heat the local area for relaxing the injured tissue and/or disperse edema.
