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Body Atlas, Muscle Reference

Muscles

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

342 muscles

342 muscles

Muscle Splenius Capitis musculus splenius capitis Neck The splenius capitis is a broad, strap-like muscle on the posterolateral neck running obliquely from the… Muscle Splenius Capitis (Full) musculus splenius capitis Head & Skull The splenius capitis is the superficial posterior cervical muscle running diagonally from the nuchal ligament to… Muscle Splenius Cervicis musculus splenius cervicis Neck The splenius cervicis lies deep to the splenius capitis, running from the mid-thoracic spinous processes to… Muscle Stapedius musculus stapedius Head & Skull The stapedius is the smallest named muscle in the human body, measuring approximately 1 millimetre in… Muscle Sternocleidomastoid musculus sternocleidomastoideus Neck The sternocleidomastoid is the dominant muscle of the anterior neck, dividing the neck into anterior and… Muscle Sternocleidomastoid musculus sternocleidomastoideus Neck The sternocleidomastoid (SCM) is the large, oblique strap muscle that forms the prominent cord visible on… Muscle Sternohyoid musculus sternohyoideus Neck The sternohyoid is the most superficial of the infrahyoid strap muscles, running from the sternum and… Muscle Sternothyroid musculus sternothyroideus Neck The sternothyroid is a strap muscle connecting the sternum directly to the thyroid cartilage, depressing the… Muscle Styloglossus musculus styloglossus Head & Skull The styloglossus arises from the elongated styloid process of the temporal bone and retracts the tongue… Muscle Stylohyoid musculus stylohyoideus Neck The stylohyoid connects the styloid process to the hyoid bone, elevating and retracting the hyoid during… Muscle Stylopharyngeus musculus stylopharyngeus Neck The stylopharyngeus is the only muscle in the head supplied exclusively by the glossopharyngeal nerve, making… 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 Suboccipital Muscles musculi suboccipitales Head & Skull The four suboccipital muscles form the floor of the suboccipital triangle, a small but neurologically significant… Muscle Subscapularis musculus subscapularis Shoulder The subscapularis is the largest and strongest of the four rotator cuff muscles, located on the… Muscle Superior Oblique (Eye) musculus obliquus superior oculi Head & Skull The superior oblique is the longest and thinnest extra-ocular muscle, redirected by the trochlear pulley at… Muscle Superior Pharyngeal Constrictor musculus constrictor pharyngis superior Head & Skull The superior pharyngeal constrictor forms the muscular wall of the nasopharynx and oropharynx, contracting sequentially during… Muscle Superior Pharyngeal Constrictor musculus constrictor pharyngis superior Neck The superior constrictor forms the upper pharyngeal wall and produces Passavant's ridge — a transverse ridge… Muscle Superior Rectus (Eye) musculus rectus superior oculi Head & Skull The superior rectus is the primary elevator of the abducted eye, arising from the orbital apex… Muscle Supinator musculus supinator Forearm The supinator wraps around the proximal radius and is the primary supinator of the forearm, most… Muscle Supraspinatus musculus supraspinatus Shoulder The supraspinatus is the most superior of the four rotator cuff muscles, lying in the supraspinous… Muscle Temporalis musculus temporalis Head & Skull The temporalis is a large, fan-shaped muscle filling the temporal fossa on the side of the… Muscle Temporalis (Full) musculus temporalis Head & Skull The temporalis fills the temporal fossa and inserts on the coronoid process as a broad fan-shaped… Muscle Temporoparietalis musculus temporoparietalis Head & Skull The temporoparietalis is the thin muscular layer of the temporoparietal fascia (SMAS extension) spanning from the…

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