intrinsic muscles of the hand

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10 Terms

1
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abductor pollicis Brevis

aBducts the thumb in sagittal plane

2
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opponens pollicis

flexes metacarpal I to oppose thumb to fingertips

3
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flexor pollicis brevis

flexes metacarpophalangeal joint of thumb

4
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adductor pollicis

draws thumb toward palm

5
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abductor digiti minimi

abducts little finger

6
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opponens digiti minimi

flexes metacarpal V at carpometacarpal joint when little finger is moved into opposition with tip of thumb

7
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flexor digiti minimi brevis

flexes little finger at metacarpophalangeal joint

8
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lumbricals

extend interphalangeal joints

9
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palmar interossei

adduct fingers

10
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dorsal interossei

abduct fingers, flex metacarpophalangeal joins but extend interphalangeal joints