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23 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Abductor Pollicis Brevis Origin
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flexor retinaculum, trapezium and scaphoid
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Abductor Pollicis Brevis Insertion
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radial side and base of proximal phalanx of thumb
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Abductor Pollicis Brevis Action
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abducts CMC 1 (thumb)
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Abductor Pollicis Brevis Innervation
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Median C8, T1
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Flexor Pollicis Brevis Origin
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lateral (superficial) head: flexor retinaculum and trapezium
medial (deep) head: capitate and trapezoid |
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Flexor Pollicis Brevis Insertion
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base of proximal phalanx of thumb
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Flexor Pollicis Brevis Action
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flex MCP1 and aid opposition and adduction of the thumb
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Flexor Pollicis Brevis Innervation
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Median C8, T1
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Opponens Pollicis Origin
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trapezium and flexor retinaculum
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Opponens Pollicis Insertion
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1st metacarpal
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Opponens Pollicis Action
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opposes the thumb to the fingers
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Opponens Pollicis Innervation
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Median C8, T1
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Adductor Pollicis Origin
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-transverse head: 3rd metacarpal
-oblique head: trapezium, trapezoid, and capitate, bases of 2-4 metacarpals |
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Adductor Pollicis Insertion
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ulnar side and base of proximal phalanx of thumb
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Adductor Pollicis Action
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adduct and flex the thumb
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Adductor Pollicis Innervation
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Ulnar C8, T1
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Palmaris Brevis Origin
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medial border of palmar aponeurosis
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Palmaris Brevis Insertion
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skin on ulnar border of palm
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Palmaris Brevis Action
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stabilize palmar skin during gripping
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Palmaris Brevis Innervation
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ulnar C8, T1
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Which muscle has two heads, is housed in the adductor compartment, and has a sesamoid bone? |
Adductor pollicis |
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Which muscles are housed in the thenar compartment? |
abductor pollicis brevis, flexor pollicis brevis, and opponens pollicis |
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Which muscle has two heads, is housed in the adductor compartment, and has a sesamoid bone? |
Adductor Pollicis |
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