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Body Atlas, Muscle Reference

Muscles

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

42 muscles

42 muscles in Hand & Wrist Clear ×

Muscle Lumbricals (Hand) musculi lumbricales manus Hand & Wrist The four lumbricals are unique muscles that originate from tendons (the FDP tendons) rather than bone… Muscle Opponens Digiti Minimi musculus opponens digiti minimi Hand & Wrist The opponens digiti minimi is the deepest hypothenar muscle, inserting along the entire fifth metacarpal shaft… Muscle Opponens Digiti Minimi Hand Detail musculus opponens digiti minimi manus detail Hand & Wrist ODM is the deepest hypothenar muscle, wrapping the fifth metacarpal. Its loss in ulnar palsy reduces… Muscle Opponens Pollicis musculus opponens pollicis Hand & Wrist The opponens pollicis is the deepest thenar muscle and the one most responsible for the medial… Muscle Opponens Pollicis (Full) musculus opponens pollicis Hand & Wrist The opponens pollicis is the thenar muscle that produces the defining human function of precision pinch… Muscle Palmar Interossei musculi interossei palmares Hand & Wrist The three palmar interossei are unipennate muscles adducting the index, ring, and little fingers toward the… Muscle Palmar Interossei Detail musculi interossei palmares detail Hand & Wrist The palmar interossei adduct the fingers. There are three (some authors count four including the thumb… Muscle Palmaris Brevis musculus palmaris brevis Hand & Wrist The palmaris brevis is a small, thin subcutaneous muscle at the medial palm that inserts directly… Muscle Palmaris Brevis Detail musculus palmaris brevis detail Hand & Wrist The palmaris brevis is the most superficial intrinsic hand muscle, attaching the palmar aponeurosis to the… Muscle Second Dorsal Interosseous Detail (Hand) musculus interosseus dorsalis secundus manus detail Hand & Wrist The second dorsal interosseous abducts the middle finger toward the index finger. The four dorsal interossei… Muscle Second Dorsal Interosseous of the Hand musculus interosseus dorsalis secundus manus Hand & Wrist The second dorsal interosseous (DAB: Dorsal ABducts) abducts the middle finger toward the index finger axis,… Muscle Second Lumbrical of the Hand musculus lumbricalis secundus manus Hand & Wrist The second lumbrical is unipennate from the second FDP tendon and is the second median-nerve lumbrical.… Muscle Second Palmar Interosseous of the Hand musculus interosseus palmaris secundus manus Hand & Wrist The second palmar interosseous (PAD: Palmar ADducts) adducts the ring finger toward the axis of the… Muscle Thenar Eminence Group musculi eminentiae thenaris Hand & Wrist The thenar eminence is formed by four intrinsic thumb muscles whose coordinated action produces thumb opposition… Muscle Third Dorsal Interosseous Detail (Hand) musculus interosseus dorsalis tertius manus detail Hand & Wrist The third dorsal interosseous abducts the middle finger toward the ring finger. The middle finger has… Muscle Third Dorsal Interosseous of the Hand musculus interosseus dorsalis tertius manus Hand & Wrist The third dorsal interosseous abducts the middle finger toward the ring finger, opposing the second dorsal… Muscle Third Lumbrical of the Hand musculus lumbricalis tertius manus Hand & Wrist The third lumbrical is bipennate, arising from adjacent FDP tendons. Its ulnar nerve innervation means it… Muscle Third Palmar Interosseous of the Hand musculus interosseus palmaris tertius manus Hand & Wrist The third palmar interosseous adducts the little finger from its naturally abducted position toward the ring…