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Human Anatomy > Hand Muscles > Flashcards

Hand Muscles Flashcards

1
Q

oppenens pollicis innervation

A

recurrent branch of median nerve (C8, T1)

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2
Q

oppenens pollicis action

A

to oppose thumb, it draws 1st metacarpal medially to center of palm and rotates it medially

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3
Q

abductor pollicis brevis innervation

A

recurrent branch of median nerve (C8, T1)

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4
Q

abductor pollicis brevis action

A

abducts thumb; helps oppose it

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5
Q

flexor pollicis brevis (superficial and deep head) innervation

A

recurrent branch of median nerve (C8, T1)

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6
Q

flexor pollicis brevis (superficial and deep head) action

A

flexes thumb

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7
Q

adductor pollicis (oblique and transverse head) innervation

A

deep branch of ulnar nerve (C8, T1)

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8
Q

adductor pollicis (oblique and transverse head) action

A

adducts thumb toward lateral border of palm

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9
Q

abductor digiti minimi innervation

A

deep branch of ulnar nerve (C8, T1)

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10
Q

abductor digiti minimi action

A

abducts 5th digit; assists in flexion of its proximal phalanx

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11
Q

flexor digiti minimi brevis innervation

A

deep branch of ulnar nerve (C8, T1)

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12
Q

flexor digiti minimi brevis action

A

flexes proximal phalanx of 5th digit

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13
Q

oppenens digiti minimi innervation

A

deep branch of ulnar nerve (C8, T1)

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14
Q

oppenens digiti minimi action

A

draws 5th metacarpal anterior and rotates it, bringing 5th digit into opposition with thumb

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15
Q

1st and 2nd lumbricals innervation

A

median nerve (C8, T1)

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16
Q

1st and 2nd lumbricals action

A

flex metacarpophalangeal joints; extend interphalangeal joints of 2nd-5th digits

17
Q

3rd and 4th lumbricals innervation

A

deep branch of ulnar nerve (C8, T1)

18
Q

3rd and 4th lumbricals action

A

flex metacarpophalangeal joints; extend interphalangeal joints

19
Q

dorsal interossei, 1st-4th lumbricals innervation

A

deep branch of ulnar nerve (C8, T1)

20
Q

dorsal interossei, 1st-4th lumbricals action

A

abduct digits from axial line; act with lumbricals in flexing metacarpophalangeal joints and extending interphalangeal joints

21
Q

palmar interossei, 1st-3rd lumbricals innervation

A

deep branch of ulnar nerve (C8, T1)

22
Q

palmar interossei, 1st-3rd lumbricals action

A

adduct digits toward axial line, assist lumbricals in flexing metacarpophalangeal joints and extending interphalangeal joints

Human Anatomy (16 decks)

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