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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 Transversus Thoracis musculus transversus thoracis Chest The transversus thoracis (sternocostalis) is a thin muscle on the inner surface of the anterior thoracic… Muscle Transversus Thoracis Detail musculus transversus thoracis detail Chest Transversus thoracis lines the deep internal surface of the anterior thorax. It is the internal thoracic… Muscle Trapezius musculus trapezius Shoulder The trapezius is a large, kite-shaped muscle covering the posterior neck and most of the upper… Muscle Trapezius (Full Overview) musculus trapezius overview Neck The trapezius covers the posterior neck and upper thorax. Its three parts coordinate scapular movement for… Muscle Trapezius (Lower) musculus trapezius pars ascendens Chest The lower trapezius is the most important trapezius component for overhead function, providing the scapular depression… Muscle Trapezius (Middle) musculus trapezius pars transversa Chest The middle trapezius runs almost horizontally from the upper thoracic spinous processes to the scapular spine,… Muscle Trapezius (Upper) musculus trapezius pars descendens Neck The upper trapezius is the most superficial and visible portion of the trapezius, running from the… Muscle Triceps Brachii musculus triceps brachii Upper Arm The triceps brachii is the sole extensor of the elbow joint, composed of three heads, a… Muscle Triceps Brachii Long Head musculus triceps brachii caput longum Upper Arm The long head of the triceps is the only triceps head to cross the shoulder joint,… Muscle Triceps Long Head caput longum m. tricipitis brachii detail Upper Arm The long head is the only head with a scapular origin, making it a two-joint muscle.… Muscle Upper Esophageal Sphincter musculus sphincter oesophagi superior Neck The upper esophageal sphincter (UES) is formed principally by the cricopharyngeus muscle (the horizontal fibers of… Muscle Vascular Smooth Muscle musculus laevis vascularis Chest Vascular smooth muscle in the tunica media of arteries and arterioles is the primary effector of… Muscle Vastus Intermedius musculus vastus intermedius Thigh The vastus intermedius is the deepest of the four quadriceps heads, lying directly on the anterior… Muscle Vastus Intermedius (Full) musculus vastus intermedius Thigh The vastus intermedius is the deepest quadriceps muscle, lying directly on the femoral shaft deep to… Muscle Vastus Intermedius Detail musculus vastus intermedius detail Thigh The vastus intermedius is the deepest quadriceps component, lying directly on the anterior femur. It is… Muscle Vastus Lateralis musculus vastus lateralis Thigh The vastus lateralis is the largest of the four quadriceps heads, forming the prominent rounded mass… Muscle Vastus Lateralis Oblique musculus vastus lateralis obliquus Thigh The VLO represents the oblique distal fibres of the vastus lateralis that exert a lateral pull… Muscle Vastus Lateralis Oblique Detail musculus vastus lateralis obliquus detail Thigh The VLO is the distal oblique fibre bundle of VL, angled 40-50 degrees relative to the… Muscle Vastus Medialis musculus vastus medialis Thigh The vastus medialis is the most medial quadriceps head, its distal oblique fibres forming the VMO… Muscle Vastus Medialis Detail musculus vastus medialis detail Thigh The vastus medialis extends distally as the VMO (vastus medialis oblique) which has distinct fibres angled… Muscle Vastus Medialis Oblique musculus vastus medialis obliquus Thigh The vastus medialis oblique (VMO) refers specifically to the distal oblique fiber bundle of the vastus… Muscle Ventricular Myocardium myocardium ventriculare Chest The ventricular myocardium consists of cardiomyocytes — terminally differentiated striated muscle cells connected by intercalated discs… Muscle Vertical Muscle of the Tongue musculus verticalis linguae Head & Skull The vertical tongue muscle consists of fibres running vertically between the dorsal and ventral surfaces of… Muscle Vocalis Muscle musculus vocalis Neck The vocalis muscle is the medial portion of the thyroarytenoid muscle, running parallel to and directly…

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