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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 Auricularis Superior musculus auricularis superior Head & Skull The auricularis superior is the largest of the three extrinsic ear muscles, arising from the temporal… Muscle Auricularis Superior Detail musculus auricularis superior detail Head & Skull Auricularis superior is the largest auricular muscle though still functionally vestigial in humans. Some individuals can… Muscle Axillary Arch Detail arcus axillaris (of Langer) detail Shoulder The axillary arch (arch of Langer) is an anomalous musculofascial slip crossing the axilla between pectoralis… Muscle Axillary Arch of Langer arcus axillaris musculosus (Langer) Shoulder Langer's axillary arch (musculotendinous arch of the axilla) is an anomalous muscle band crossing the axilla… Muscle Biceps Brachii musculus biceps brachii Upper Arm The biceps brachii is the prominent two-headed muscle of the anterior upper arm, instantly recognisable as… Muscle Biceps Brachii Long Head caput longum m. bicipitis brachii Upper Arm The long head has the longest course of any upper arm tendon, traversing the glenohumeral joint… Muscle Biceps Brachii Short Head musculus biceps brachii caput breve Upper Arm The biceps brachii short head originates from the coracoid alongside the coracobrachialis, forming a broad conjoined… Muscle Biceps Brachii Short Head Detail caput breve m. bicipitis brachii detail Upper Arm The short head of biceps has a coracoid origin, making it vulnerable to coracoid impingement and… Muscle Biceps Femoris musculus biceps femoris Thigh The biceps femoris is the lateral hamstring, consisting of a long head arising from the ischial… Muscle Biceps Femoris Detail musculus biceps femoris detail Thigh The biceps femoris has two distinct heads with different nerve supplies (tibial vs common peroneal), making… Muscle Bowel Muscularis Propria tunica muscularis propria intestini Abdomen The muscularis propria of the intestine is the functional motor apparatus of the gut, consisting of… Muscle Brachialis musculus brachialis Upper Arm The brachialis is the deepest anterior elbow flexor, lying directly over the anterior humerus under the… Muscle Brachialis Detail musculus brachialis detail Upper Arm The brachialis is the primary elbow flexor, acting regardless of forearm rotation position. Unlike the biceps… Muscle Brachioradialis musculus brachioradialis Forearm The brachioradialis is the most superficial forearm muscle and forms the prominent lateral border of the… Muscle Brachioradialis (Full) musculus brachioradialis overview Forearm Brachioradialis is the most lateral elbow flexor with a radial nerve supply making it the key… Muscle Bronchial Smooth Muscle musculus bronchialis Chest Bronchial smooth muscle encircles the airways from the main bronchi to the terminal bronchioles, forming the… Muscle Buccinator musculus buccinator Head & Skull The buccinator is the muscle of the cheek, forming the muscular wall of the buccal vestibule… Muscle Buccinator (Full) musculus buccinator Head & Skull The buccinator is the primary cheek muscle, keeping food between the teeth during chewing by compressing… Muscle Buccinator Detail musculus buccinator detail Head & Skull The buccinator forms the muscular cheek wall. The parotid duct pierces the buccinator to enter the… Muscle Bulbocavernosus (Female) musculus bulbospongiosus (femininus) Abdomen The female bulbocavernosus (bulbospongiosus) lies on either side of the vaginal orifice, encircling it and inserting… Muscle Bulbospongiosus musculus bulbospongiosus Pelvis & Hip The bulbospongiosus is a perineal muscle with sex-specific anatomy and function, forming the superficial perineal pouch… Muscle Bulbospongiosus (Full) musculus bulbospongiosus Pelvis & Hip The bulbospongiosus surrounds the bulb of the penis in males or encircles the vaginal orifice as… Muscle Bulbospongiosus Detail musculus bulbospongiosus Pelvis & Hip Bulbospongiosus (bulbocavernosus) surrounds the penile bulb and corpus spongiosum in males, and the vaginal orifice and… Muscle Cardiac Conduction Muscle myocytus conducens cardiacus (fibra Purkinje) Chest Cardiac conduction cells are specialised modified cardiomyocytes with reduced contractile capacity and enhanced electrical automaticity and…
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