Synonyms for the term "musculus flexor pollicis longus" can be used to refer to the skeletal muscle responsible for flexing the thumb. Alternative names for this muscle include long flexor of the thumb or flexor pollicis longus muscle. In anatomical terms, it is a long muscle located in the forearm and is crucial for thumb movements. Understanding synonyms helps in describing this muscle accurately and aids communication among medical professionals. These terms are helpful in discussions, research papers, or patient diagnoses related to thumb flexion and its associated musculoskeletal system.