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25 Cards in this Set
- Front
- Back
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Midpalmar origin and insertion
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origin: Origin; insertion: Insertion
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Lumbricals action
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Flex fingers at metacarpophalangeal joints but extend fingers at interphalangeal joints
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Lumbricals innervation
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Median nerve (lateral 2); Ulnar nerve (medial 2)
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Opponens Digiti Minimi origin and insertion
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origin: Hamate bone and flexor retinaculum; insertion: Most of length of lateral side of metacarpal 5
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Midpalmar action
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Action
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Midpalmar innervation
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Nerve
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Flexor Digiti Minimi Brevis origin and insertion
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origin: Hamate bone and flexor retinaculum; insertion: Medial side of proximal phalanx of little finger
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Opponens Digiti Minimi action
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Helps in opposition: brings metacarpal 5 toward thumb to cup the hand
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Opponens Digiti Minimi innervation
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Ulnar nerve
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Abductor Digiti Minimi origin and insertion
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origin: Pisiform bone; insertion: Medial side of proximal phalanx of little finger
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Flexor Digiti Minimi Brevis action
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Flexes little finger at metacarpophalangeal joint
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Flexor Digiti Minimi Brevis innervation
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Ulnar nerve
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Hypothenar origin and insertion
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origin: Origin; insertion: Insertion
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Abductor Digiti Minimi action
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Abducts (and flexes) little finger at metacarpophalangeal joint
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Abductor Digiti Minimi innervation
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Ulnar nerve
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Adductor Pollicis origin and insertion
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origin: Bases of metacarpals 2-4; front of metacarpal 3; insertion: Medial side of base of proximal phalanx of thumb
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Hypothenar action
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Action
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Hypothenar innervation
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Nerve
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Opponens Pollicis origin and insertion
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origin: Flexor retinaculum and nearby carpals; insertion: Whole anterior side of metacarpal 1
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Adductor Pollicis action
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Adducts thumb
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Adductor Pollicis innervation
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Ulnar nerve
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Flexor Pollicis Brevis origin and insertion
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origin: Flexor retinaculum and nearby carpals; insertion: Lateral side of base of proximal phalanx of thumb
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Opponens Pollicis action
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Opposition: moves thumb to touch tip of little finger
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Opponens Pollicis innervation
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Median nerve
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Abductor Pollicis Brevis origin and insertion
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origin: Flexor retinaculum; insertion: Lateral base of thumb’s proximal phalanx
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