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12 Cards in this Set
- Front
- Back
Abductor Pollicis Brevis
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O: flexor retinaculum, tubercle of the scaphoid, tubercle of trapezium
I: radial side – base of the proximal phalanx of the thumb N: median – recurrent branch A: abducts thumb at the carpometacarpal and metacarpophalangeal joints |
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Flexor Pollicis Brevis
(Superficial Portion) |
O: flexor retinaculum, tubercle of the trapezium, trapezoid and capitate
I: radial side – base of proximal phalanx N: median – recurrent branch A: flexion of proximal phalanx at the metacarpophalangeal joint |
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Flexor Pollicis Brevis
(Deep Head) |
O: ulnar side of the 1st metacarpal
I: ulnar side – base of proximal phalanx N: ulnar – deep branch A: flexion of proximal phalanx at the metacarpophalangeal joint |
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Opponens Pollicis
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O: tubercle of the trapezium, flexor retinaculum
I: length of the metacarpal bone of the thumb on its radial side N: median – recurrent branch A: opposition of the thumb – bringing the thumb out to face the fingertips |
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Adductor Pollicis
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O: capitate bone and base of the 2nd and 3rd metacarpal (oblique head)
Palmar surface of the 3rd metacarpal (transverse head) I: ulnar side of the base of the 1st phalanx of the thumb N: ulnar – deep branch A: adduction of the thumb |
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Palmaris Brevis
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O: ulnar margin – palmar aponeurosis and flexor retinaculum
I: skin on the ulnar border of the palm of the hand N: ulnar – superficial branch A: draws skin on the ulnar side inward to “cup” the hand |
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Abductor Digiti Minimi
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O: pisiform bone
I: ulnar side – base of the proximal phalanx of the 5th digit N: ulnar – deep branch A: abduct the little finger at the metacarpophalangeal |
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Flexor Digiti Minimi
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O: hook of hamate, flexor retinaculum
I: ulnar side of the base of the proximal phalanx of the 5th digit N: ulnar – deep branch A: flexion of proximal phalanx of the 5th digit |
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Opponens Digiti Minimi
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O: hook of hamate, flexor retinaculum
I: whole length of the metacarpal bone of the 5th digit on the ulnar side N: ulnar – deep branch A: opposition – bringing the tip of the 5th digit to the face of the tip of the thumb |
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Lumbricals
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O: tendons of the flexor digitorum profundus
I: radial side – extensor expansion at the level of the proximal phalanx, distal to the insertion of the interossei N: median – superficial branch (II and III) Ulnar – deep branch (IV and V) A: flexion of proximal phalanges and extension of middle and distal phalanges |
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Dorsal Interossei
(4 in number, located between metacarpals) |
O: from adjacent sides of the metacarpal bones
I: extensor expansion and bases of proximal phalanges, radial side of 2nd and 3rd digits, ulnar side of 3rd and 4th digits, proximal to lumbricals insertion N: ulnar – deep branch A: abduction and flexion of digits at metacarpophalangeal (MP) joints Extension of proximal interphalangeal (PIP) and distal interphalangeal (DIP) joints |
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Palmar Interossei
(3 in number) |
O: length of metacarpal bones II, IV and V on palmar surfaces
I: extensor expansion and bases of proximal phalanges, radial side of 4th and 5th digits, ulnar side of 2nd digit, proximal to lumbricals insertion N: ulnar – deep branch A: adduction and flexion at MP joints Extension of PIP and DIP joints |