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Palm and Fingers

Nerve, blood supply, origin, insertion

Palmaris brevis N Superficial branch of ulnar nerve C8, T1
Palmaris brevis BS Branches from superficial palmar arch
Palmaris brevis O 1. Medial border of central part of palmar aponeurosis 2. Flexor retinaculum
Palmaris brevis I Dermis on ulnar border of hand
Lumbricals N 1st & 2nd: Median n. 3rd & 4th: Deep terminal brnahc of ulnar n
Lumbricals BS 1st & 2nd: 1st & 2nd dorsal metacarpal and dorsal digitial aa 3rd & 4th: 2nd & 3rd common palmar digital aa, 3rd & 4th dorsal digital aa
Lumbricals O 1st & 2nd: radial sides of palmar surface s of tendons of 2nd & 3rd fingers 3rd & 4th: Adjacent sides of tendons of 3rd & 4th fingers and 4th & 5th fingers
Lumbricals I 1. Radial side of corresponding finger 2. Lateral margin of dorsal digital expansion of extensor digitorum
Palmar interossei N Deep branch of ulnar n C8, T1
Palmar interossei BS Branches from deep palmar arch and princeps pollicis, radialis indicis, palmar metacarpal, proper palmar digitial, and proximal and distal perforating aa
Palmar interossei O (1st & 2nd) 1st: Ulnar side of palmar surface of base of 1st metacarpal 2nd: Ulnar side of 2nd metacarpal
Palmar interossei O (3rd & 4th) 3rd: Radial side of 4th metacarpal 4th: Radial side of 5th metacarpal
Palmar interossei I (1st & 2nd) 1st: Seisamoid bone on ulnar side of 1st proximal phalanx, phalanx, and dorsal digital expansion 2nd: Ulnar side of 2nd distal expansion
Palmar interossei I (3rd & 4th) 3rd: Radial side of 4th digital expansion 4th: Radial side of 5th digital expansion, base of proximal phalanx
Dorsal interossei N Deep branch of ulnar n C8, T1
Dorsal interossei BS 1. Radial a 2. Princeps pollicis a 3. Radialis indicis a
Dorsal interossei O Adjacent sides of 2 metacarpal bones
Dorsal interossei I Bases of proximal phalanges and dorsal digital expansions of radial side of 2nd digit, radial & ulnar sides of 3rd digit, and ulnar side of 4th digit
Created by: PippaODU



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