<prompt> Which tendon is affected is lateral epicondylitis?Extensor Carpi Radialis BrevisExtensor Carpi Radialis LongusFlexor Pollicis LongusSupinator  <response>: Ans. is a i.e., Extensor Carpi Radialis Brevis Tennis elbow Tennis elbow is a type of repetitive strain injury resulting from tendon overuse and failed healing of the tendon. The extensor carpi radialis brevis muscle plays a key role. Histological findings include granulation tissue, microrupture, degenerative changes, and there is no traditional inflammation.As a consequence, lateral elbow tendinopathy or tendinosis is used instead of lateral epicondylitis. 