The Triceps brachii, commonly known as the Triceps Muscle, is a major muscle in the upper arm with significant importance in orthopaedics due to its role in elbow extension and overall arm function. It has three heads: the long head, lateral head, and medial head. In orthopaedics, assessments often involve evaluating the triceps in cases of elbow injuries, weakness, or conditions affecting upper limb mobility. Dysfunction in the triceps can contribute to difficulties in performing activities that require elbow extension, such as lifting or pushing. Rehabilitation strategies for triceps-related issues in orthopaedics may include exercises to strengthen and improve the flexibility of the muscle. Physical therapists focus on restoring optimal arm function, addressing muscle imbalances, and facilitating overall upper limb biomechanics. Understanding the anatomy and function of the triceps muscle is essential in orthopaedics for diagnosing and managing conditions related to the upper arm and elbow, contributing to comprehensive musculoskeletal care and effective rehabilitation.