Hand Muscles Flashcards

1
Q

Abductor Digiti Minimi (attachments)

A

Pisiform to ulnar side of proximal phalanx of 5th digit

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2
Q

Abductor Digiti Minimi (action)

A

Abducts 5th digit

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3
Q

Abductor Digiti Minimi (innervation)

A

Deep branch of ulnar nerve (C8-T1)

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4
Q

Abductor Pollicis Brevis (attachments)

A

Transverse carpal ligament to radial side of base of proximal phalanx of thumb

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5
Q

Abductor Pollicis Brevis (action)

A

Abducts thumb

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6
Q

Abductor Pollicis Brevis (innervation)

A

Recurrent branch of median nerve (C6-T1)

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7
Q

Adductor Pollicis (attachment)

A

Capitate, 2nd & 3rd metacarpals (oblique head) & palmar aspect of 3rd metacarpal (transverse head) to base of proximal phalanx of thumb

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8
Q

Adductor Pollicis (actions)

A

Adducts thumb

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9
Q

Adductor Pollicis (innervation)

A

Deep branch of ulnar nerve (C8-T1)

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10
Q

Dorsal Interossei (attachments)

A

Adjacent sides of metacarpals to proximal phalangeal bases & dorsal digital expansions of digits 2-4

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11
Q

Dorsal Interossei (actions)

A

Abducts (MCP), flexes (MCP) & extends IP digits 2-4

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12
Q

Dorsal Interossei (innervation)

A

Deep branch of ulnar nerve (C8-T1)

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13
Q

Flexor Digiti Minimi Brevis (attachment)

A

Hamate to ulnar side of base of proximal phalanx of 5th digit

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14
Q

Flexor Pollicis Brevis (attachment)

A

Transverse carpal ligament & trapezium to radial side of base of proximal phalanx of thumb; deep head blends w/ opponens pollicis

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15
Q

Flexor Pollicis Brevis (action)

A

Flexes thumb (MCP)

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16
Q

Flexor Pollicis Brevis (innervation)

A

Recurrent branch of median nerve (superficial head) & deep branch of ulnar nerve (deep head)

17
Q

Lumbricals (attachments)

A

Tendons of FDP to radial side of dorsal digital expansion of digits 2-5

18
Q

Lumbricals (actions)

A

Flexes MCP & extends IP joints of digits 2-5

19
Q

Lumbricals (innervation)

A

Deep branch of ulnar nerve (3rd & 4th) & median nerve (1st & 2nd)

20
Q

Opponens Digiti Minimi (attachments)

A

Hook of hamate to ulnar margin of shaft of 5th metacarpal

21
Q

Opponens Digiti Minimi (actions)

A

Opposition of thumb to 5th digit

22
Q

Opponens Digiti Minimi (innervation)

A

Deep branch of ulnar nerve (C8-T1)

23
Q

Opponens Pollicis (attachments)

A

Transverse carpal ligament & trapezium to palmar surface of 1st metacarpal

24
Q

Opponens Pollicis (actions)

A

Opposition of thumb to 5th digit

25
Q

Opponens Pollicis (innervation)

A

Recurrent branch of median nerve (C6-T1)

26
Q

Palmar Interossei (attachments)

A

Palmar aspects of metacarpals 2, 4 & 5 to dorsal digital expansions of digits 2, 4 & 5

27
Q

Palmar Interossei (actions)

A

Adduction (MCP), flexes (MCP) & extends IP digits 2, 4 & 5

28
Q

Palmar Interossei (innervation)

A

Deep branch of ulnar nerve (C8-T1)