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Anatomy Lab > OP Group 5 > Flashcards

OP Group 5 Flashcards

1
Q

Flexor Pollicis Longus - Origin

A

Radius (middle 1/3 anterior surface) and interosseous membrane

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2
Q

Flexor Pollicis Longus - Insertion

A

Base of distal phalanx of thumb (anterior aspect)

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3
Q

Flexor Pollicis Longus - Action

A

Flexion of thumb (CMC, MCP, IP joints); weak wrist flexion

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4
Q

Flexor Pollicis Longus - Innervation

A

Median nerve

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5
Q

Extensor Indicis - Origin

A

Posterior distal 1/3 of ulna and interosseous membrane

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6
Q

Extensor Indicis - Insertion

A

Base of middle and distal phalanx of index finger (via extensor expansion & extensor digitorum muscle tendon)

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7
Q

Extensor Indicis - Action

A

Extension of index finger (MCP, PIP, DIP); weak extension of hand and adduction of index finger

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8
Q

Extensor Indicis - Innervation

A

Radial nerve

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9
Q

Flexor Digiti Minimi - Origin

A

Flexor retinaculum and hook of hamate

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10
Q

Flexor Digiti Minimi - Insertion

A

Base of proximal phalanx of little finger

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11
Q

Flexor Digiti Minimi - Action

A

Flexion of little finger (CMC and MCP)

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12
Q

Flexor Digiti Minimi - Innervation

A

Ulnar nerve

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13
Q

Abductor Pollicis Longus - Origin

A

Posterior surfaces of ulna, radius and interosseous membrane (middle 1/3 of forearm)

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14
Q

Abductor Pollicis Longus - Insertion

A

Base of 1st metacarpal (lateral side)

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15
Q

Abductor Pollicis Longus - Action

A

Abduction of thumb (CMC joint); also assists with radial deviation of wrist, extension and rotation of thumb, and flexion/supination of hand at wrist

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16
Q

Abductor Pollicis Longus - Innervation

A

Radial nerve

17
Q

Adductor Pollicis - Origin

A

Oblique head: capitate and bases of 2nd and 3rd metacarpals; Transverse head: palmar surface of 3rd metacarpal

18
Q

Adductor Pollicis - Insertion

A

Base of proximal phalanx of thumb

19
Q

Adductor Pollicis - Action

A

Adduction of thumb

20
Q

Adductor Pollicis - Innervation

A

Ulnar nerve

21
Q

Extensor Pollicis Longus - Origin

A

Posterior middle 1/3 of ulna and interosseous membrane

22
Q

Extensor Pollicis Longus - Insertion

A

Distal phalanx of thumb

23
Q

Extensor Pollicis Longus - Action

A

Extension of thumb (CMC, MCP, IP joints); assists in extension and radial flexion of wrist

24
Q

Extensor Pollicis Longus - Innervation

A

Radial nerve

25
Q

Flexor Pollicis Brevis - Origin

A

Trapezium and flexor retinaculum

26
Q

Flexor Pollicis Brevis - Insertion

A

Base of proximal phalanx of thumb

27
Q

Flexor Pollicis Brevis - Action

A

Flexion of thumb (CMC, MCP joint)

28
Q

Flexor Pollicis Brevis - Innervation

A

Median nerve

29
Q

Opponens Pollicis - Origin

A

Tubercle of trapezium and flexor retinaculum

30
Q

Opponens Pollicis - Insertion

A

Metacarpal of thumb (anteriolateral side)

31
Q

Opponens Pollicis - Action

A

Opposition of thumb (CMC joint)

32
Q

Opponens Pollicis - Innervation

A

Median and ulnar nerves

Anatomy Lab (18 decks)

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