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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 Peroneus Brevis Detail musculus peroneus brevis detail Lower Leg Peroneus brevis is the primary lateral ankle stabiliser. Its tendon lies anterior to peroneus longus in… Muscle Peroneus Digiti Minimi musculus peroneus digiti minimi Lower Leg The peroneus digiti minimi is an accessory muscle to the little toe present in approximately 22%… Muscle Peroneus Digiti Minimi Detail musculus peroneus digiti minimi detail Lower Leg Peroneus digiti minimi is a small anomalous peroneal muscle present in approximately 21% of individuals. It… Muscle Peroneus Longus musculus peroneus longus Lower Leg The peroneus longus takes a remarkable path from the lateral fibula all the way across the… Muscle Peroneus Longus Detail musculus peroneus longus detail Lower Leg Peroneus longus crosses the plantar foot from the peroneal tubercle to the medial cuneiform, acting as… Muscle Peroneus Quartus musculus peroneus quartus Lower Leg The peroneus quartus is an accessory peroneal muscle present in approximately 10-22% of individuals, arising from… Muscle Peroneus Tertius musculus peroneus tertius Lower Leg The peroneus tertius is an inconstant muscle, absent in approximately 8 to 10 percent of people,… Muscle Peroneus Tertius (Detail) musculus peroneus tertius Lower Leg Peroneus tertius is an inconstant fourth anterior compartment muscle that dorsiflexes and everts the foot. When… Muscle Pharyngeal Constrictors musculi constrictores pharyngis Neck The three pharyngeal constrictors overlap like nested plant pots to form the posterior and lateral pharyngeal… Muscle Piriformis musculus piriformis Pelvis & Hip The piriformis is a flat, pear-shaped muscle occupying the greater sciatic foramen and running from the… Muscle Piriformis (Full) musculus piriformis Pelvis & Hip The piriformis is the key external hip rotator and the primary landmark of the greater sciatic… Muscle Piriformis Detail musculus piriformis detail Pelvis & Hip The piriformis is the key muscle of the greater sciatic notch — it divides the notch… Muscle Plantar Interossei (Foot) musculi interossei plantares pedis Foot & Ankle The three plantar interossei adduct the third, fourth, and fifth toes toward the second toe axis,… Muscle Plantaris musculus plantaris Lower Leg The plantaris is a vestigial muscle with a very short belly and an extremely long, thin… Muscle Plantaris (Full) musculus plantaris Lower Leg The plantaris has a tiny muscle belly (7-10 cm) producing the longest tendon in the body… Muscle Plantaris Detail musculus plantaris detail Lower Leg The plantaris has an extremely long thin tendon (up to 40 cm) relative to its small… Muscle Platysma musculus platysma Neck The platysma is a broad, thin superficial muscle of the neck covering the anterior triangle from… Muscle Platysma (Full) musculus platysma Neck The platysma is a broad flat muscle in the superficial neck, connecting the chest skin to… Muscle Platysma Detail musculus platysma detail Neck The platysma is a broad subcutaneous sheet covering the anterior neck. Its SMAS connections to the… Muscle Popliteus musculus popliteus Knee The popliteus is a small triangular muscle at the back of the knee whose most critical… Muscle Popliteus Detail musculus popliteus detail Knee Popliteus is the only muscle of the knee proper, unlocking the fully extended knee. Its femoral… Muscle Posterior Cricoarytenoid musculus cricoarytenoideus posterior Neck The posterior cricoarytenoid is the most important intrinsic laryngeal muscle because it is the only abductor… Muscle Posterior Cricoarytenoid Detail musculus cricoarytenoideus posterior detail Head & Skull The posterior cricoarytenoid is the only muscle that opens the vocal folds, making it the most… Muscle Posterior Scalene musculus scalenus posterior Neck The posterior scalene is the smallest and most posterior of the three scalene muscles, running from…

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