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1
Q

Pronator Teres - Origin

A

Humeral head: medial epicondyle via common flexor tendon; Ulnar head: coronoid process of ulna

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2
Q

Pronator Teres - Insertion

A

Lateral radius middle of shaft (pronator tuberosity)

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3
Q

Pronator Teres - Action

A

Pronation of forearm

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4
Q

Pronator Teres - Innervation

A

Median nerve

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5
Q

Flexor Carpi Ulnaris - Origin

A

Humeral Head: medial epicondyle (common flexor tendon); Ulnar Head: medial aspect of olecranon and proximal 2/3 of medial ulna

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6
Q

Flexor Carpi Ulnaris - Insertion

A

Pisiform and hamate bones; base of 5th metacarpal

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7
Q

Flexor Carpi Ulnaris - Action

A

Flexion of wrist; ulnar flexion (adduction) of wrist

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8
Q

Flexor Carpi Ulnaris - Innervation

A

Ulnar nerve

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9
Q

Supinator - Origin

A

Lateral epicondyle of humerus and supinator crest of lateral ulna (near radial notch)

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10
Q

Supinator - Insertion

A

Proximal 1/3 of radial shaft

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11
Q

Supinator - Action

A

Supination of forearm

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12
Q

Supinator - Innervation

A

Radial nerve

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13
Q

Flexor Carpi Radialis - Origin

A

Medial epicondyle (via common flexor tendon)

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14
Q

Flexor Carpi Radialis - Insertion

A

Base of 2nd and 3rd metacarpals (anterior side)

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15
Q

Flexor Carpi Radialis - Action

A

Flexion of wrist; radial flexion (abduction) of wrist

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16
Q

Flexor Carpi Radialis - Innervation

A

Median nerve

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17
Q

Flexor Digitorum Superficialis - Origin

A

Humeral-ulnar head: medial epicondyle via common flexor tendon and coronoid process of ulna; Radial head: oblique line of radius

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18
Q

Flexor Digitorum Superficialis - Insertion

A

Base of middle phalanges of fingers 2-5

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19
Q

Flexor Digitorum Superficialis - Action

A

Flexion of fingers 2-5 (PIP, MCP)

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20
Q

Flexor Digitorum Superficialis - Innervation

A

Median nerve

21
Q

Palmaris Longus - Origin

A

Medial epicondyle (via common flexor tendon)

22
Q

Palmaris Longus - Insertion

A

Palmar aponeurosis and flexor retinaculum

23
Q

Palmaris Longus - Action

A

Flexion of wrist

24
Q

Palmaris Longus - Innervation

A

Median nerve

25
Q

Flexor Digitorum Profundus - Origin

A

Anterior and medial surface of ulna (proximal ½) and interosseous membrane

26
Q

Flexor Digitorum Profundus - Insertion

A

Base of distal phalange of fingers 2-5

27
Q

Flexor Digitorum Profundus - Action

A

Flexion of fingers (at DIP, PIP, MCP joints)

28
Q

Flexor Digitorum Profundus - Innervation

A

Median nerve; ulnar nerve

29
Q

Flexor Pollicis Longus - Origin

A

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

30
Q

Flexor Pollicis Longus - Insertion

A

Base of distal phalanx of thumb (anterior aspect)

31
Q

Flexor Pollicis Longus - Action

A

Flexion of thumb (CMC, MCP, IP joints); also crosses wrist joint so weak wrist flexion

32
Q

Flexor Pollicis Longus - Innervation

A

Median nerve

33
Q

What is the origin of the Abductor Pollicis Longus?

A

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

34
Q

What is the insertion of the Abductor Pollicis Longus?

A

Base of 1st metacarpal (lateral side)

35
Q

What is the action of the Abductor Pollicis Longus?

A

Abduction of thumb (CMC joint)

Also: radial deviation of wrist, assists with extension and rotation of thumb and flexion/supination of hand at wrist

36
Q

What nerve innervates the Abductor Pollicis Longus?

A

Radial nerve

37
Q

What clinical test is used for DeQuervain’s syndrome?

A

Finklestein’s Test

38
Q

What is the origin of the Extensor Pollicis Brevis?

A

Posterior distal 1/3 surface of radius & interosseous membrane

39
Q

What is the insertion of the Extensor Pollicis Brevis?

A

Base of proximal phalanx of thumb

40
Q

What is the action of the Extensor Pollicis Brevis?

A

Extension of proximal phalanx & 1 metacarpal of thumb

Mild radial flexion of wrist

41
Q

What nerve innervates the Extensor Pollicis Brevis?

A

Radial nerve

42
Q

What is the origin of the Extensor Pollicis Longus?

A

Posterior middle 1/3 of ulna and interosseous membrane

43
Q

What is the insertion of the Extensor Pollicis Longus?

A

Distal phalanx of thumb

44
Q

What is the action of the Extensor Pollicis Longus?

A

Extension of thumb (CMC, MCP, IP joints)

Assists in extension and radial flexion of wrist

45
Q

What nerve innervates the Extensor Pollicis Longus?

A

Radial nerve

46
Q

What is the origin of the Extensor Indicis?

A

Posterior distal 1/3 of ulna and interosseous membrane

47
Q

What is the insertion of the Extensor Indicis?

A

Base of middle and distal phalanx of index finger (2nd finger) (via extensor expansion & extensor digitorum muscle tendon)

48
Q

What is the action of the Extensor Indicis?

A

Extension of index finger (MCP, PIP, DIP)

Weak extension of hand and adduction of index finger

49
Q

What nerve innervates the Extensor Indicis?

A

Radial nerve

Anatomy Lab (18 decks)

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