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Body Atlas, Muscle Reference

Muscles

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

62 muscles

62 muscles in Chest Clear ×

Muscle Spinalis Thoracis musculus spinalis thoracis Chest Spinalis thoracis is the medial column of the thoracic erector spinae, connecting lower thoracic and upper… Muscle Sternalis Muscle musculus sternalis Chest The sternalis is an anomalous superficial chest wall muscle running vertically on the anterior chest, parallel… Muscle Subclavius musculus subclavius Chest The subclavius is a small muscle running parallel to the clavicle from the first costochondral junction… Muscle Subclavius (Full) musculus subclavius Chest The subclavius is a small muscle tucked between the first rib and the clavicle, depressing the… Muscle Subclavius Detail musculus subclavius detail Chest The subclavius is a small muscle sandwiched between the clavicle and first rib. Its primary function… Muscle Subcostales musculi subcostales Chest The subcostales are thin, flat muscles on the inner surface of the lower thoracic cage, running… Muscle Subcostales Detail musculi subcostales detail Chest The subcostales are thin muscles on the inner thoracic wall, most prominent in the lower thorax.… Muscle Trachealis Muscle musculus trachealis Chest The trachealis is the smooth muscle of the posterior membranous tracheal wall, visible on bronchoscopy as… 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 (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 Vascular Smooth Muscle musculus laevis vascularis Chest Vascular smooth muscle in the tunica media of arteries and arterioles is the primary effector of… Muscle Ventricular Myocardium myocardium ventriculare Chest The ventricular myocardium consists of cardiomyocytes — terminally differentiated striated muscle cells connected by intercalated discs…