hand muscles

Adductor Pollicis

Adductor Pollicis The structure indicated is the adductor pollicis muscle of the hand. The adductor pollicis muscle belong to the intrinsic group of muscles which act on the hand. The intrinsic muscles include the following muscles/groups: Thenar group (act on thumb) Hypothenar group (act on little finger) Adductor pollicis Lumbricals Interossesus muscles (palmar and dorsal interossei) Palmaris brevis All the intrinsic muscles of the hand, except the thenar muscles and the lateral two lumbrical muscles are innervated by the deep branch of the ulnar nerve. The thenar muscles and the lateral two lumbrical muscles are innervated by the median nerve.  …

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adductor pollicis

Flexor Pollicis Brevis

Flexor Pollicis Brevis The structure indicated is the flexor pollicis brevis muscle of the hand. The flexor pollicis brevis muscle is one of the intrinsic muscles of the hand that belongs to the thenar group. The thenar group of intrinsic hand muscles consist of three muscles: Abductor pollicis brevis Flexor pollicis brevis Opponens pollicis All the intrinsic muscles of the hand, except the thenar muscles and the lateral two lumbrical muscles are innervated by the deep branch of the ulnar nerve. The thenar muscles and the lateral two lumbrical muscles are innervated by the median nerve.  A useful mnemonic for …

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flexor pollicis brevis

First Lumbrical

First Lumbrical The structure indicated is the first lumbrical muscle of the hand. The lumbricals belong to the intrinsic group of muscles which act on the hand. The intrinsic muscles include the following muscles/groups: Thenar group (act on thumb) Hypothenar group (act on little finger) Adductor pollicis Lumbricals Interossesus muscles Palmaris brevis All the intrinsic muscles of the hand, except the thenar muscles and the lateral two lumbrical muscles are innervated by the deep branch of the ulnar nerve. The thenar muscles and the lateral two lumbrical muscles are innervated by the median nerve.  A useful mnemonic for remembering this …

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first lumbrical