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Body Atlas, Muscle Reference

Muscles

Complete muscle reference, origins, insertions, nerve supply, actions, clinical notes, and common injuries.

676 muscles

676 muscles

Muscle Third Dorsal Interosseous of the Foot Detail musculus interosseus dorsalis tertius pedis detail Foot & Ankle The third dorsal interosseous abducts the third toe away from the midline axis. The third and… Muscle Third Dorsal Interosseous of the Hand musculus interosseus dorsalis tertius manus Hand & Wrist The third dorsal interosseous abducts the middle finger toward the ring finger, opposing the second dorsal… Muscle Third Lumbrical of the Foot musculus lumbricalis tertius pedis Foot & Ankle The third lumbrical controls the fourth toe MTP joint and extensor mechanism. It is bipennate and… Muscle Third Lumbrical of the Hand musculus lumbricalis tertius manus Hand & Wrist The third lumbrical is bipennate, arising from adjacent FDP tendons. Its ulnar nerve innervation means it… Muscle Third Palmar Interosseous of the Hand musculus interosseus palmaris tertius manus Hand & Wrist The third palmar interosseous adducts the little finger from its naturally abducted position toward the ring… Muscle Third Plantar Interosseous Detail musculus interosseus plantaris tertius detail Foot & Ankle The third plantar interosseous is the most lateral of the three plantar interossei, adducting the little… Muscle Third Plantar Interosseous of the Foot musculus interosseus plantaris tertius pedis Foot & Ankle The third plantar interosseous is the most lateral of the plantar interossei, adducting the fifth toe… Muscle Thyroarytenoid musculus thyroarytenoideus Neck The thyroarytenoid is the bulk of the true vocal fold, whose medial fibres form the vocalis… Muscle Thyroarytenoid Detail musculus thyroarytenoideus detail Head & Skull The thyroarytenoid contains the vocalis (thyrovocalis) as its medial portion — the muscle that forms the… Muscle Thyrohyoid musculus thyrohyoideus Neck The thyrohyoid connects the thyroid cartilage to the hyoid bone and is unique among the infrahyoid… Muscle Thyrohyoid Detail musculus thyrohyoideus detail Neck The thyrohyoid has the unique distinction of being innervated by C1 fibres that travel with the… Muscle Tibialis Accessorius musculus tibialis accessorius Lower Leg Tibialis accessorius is a rare accessory muscle variant of the medial lower leg, arising from the… Muscle Tibialis Accessorius Detail musculus tibialis accessorius detail Lower Leg Tibialis accessorius is an anomalous muscle arising from the posterior leg and inserting with tibialis posterior… Muscle Tibialis Anterior musculus tibialis anterior Lower Leg The tibialis anterior is the large, prominent muscle of the anterior shin, running from the upper… Muscle Tibialis Anterior Detail musculus tibialis anterior detail Lower Leg Tibialis anterior is the primary ankle dorsiflexor and the most powerful muscle in the anterior compartment.… Muscle Tibialis Posterior musculus tibialis posterior Lower Leg The tibialis posterior is the deepest muscle of the posterior leg compartment, originating from the interosseous… Muscle Tibialis Posterior Detail musculus tibialis posterior detail Lower Leg Tibialis posterior is the deepest and most powerful medial arch stabiliser, with broad midfoot insertion providing… Muscle Trachealis Muscle musculus trachealis Chest The trachealis is the smooth muscle of the posterior membranous tracheal wall, visible on bronchoscopy as… Muscle Transverse Arytenoid Muscle musculus arytenoideus transversus Neck The transverse arytenoid (interarytenoid) muscle is the only unpaired intrinsic laryngeal muscle. It connects the posterior… Muscle Transverse Muscle of the Tongue musculus transversus linguae Head & Skull The transverse tongue muscle is one of the four intrinsic tongue muscles, consisting of fibres running… Muscle Transverse Part of Nasalis pars transversa m. nasalis Head & Skull The transverse part of nasalis is the compressor component that narrows the nasal bridge. Combined with… Muscle Transverse Perinei musculus transversus perinei superficialis et profundus Pelvis & Hip The transverse perinei are paired muscles running from the ischial tuberosities to the central perineal body… Muscle Transversus Abdominis musculus transversus abdominis Abdomen The transversus abdominis is the deepest abdominal muscle with horizontal fibres wrapping around the trunk like… Muscle Transversus Abdominis Detail musculus transversus abdominis detail Abdomen The deepest flat abdominal muscle with transverse fibres. It is the primary spinal stabiliser, contracting prior…

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