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RMT Term 1 > Lecture 8: Muscles Of The Forearm And Hand > Flashcards

Lecture 8: Muscles Of The Forearm And Hand Flashcards

1
Q

Name the muscles in the superficial anterior compartment of the forearm

A
  1. Pronator Teres (PT)
  2. Flexor Carpi Radialis (FCR)
  3. Palmaris Longus (PL)
  4. Flexor Carpi Ulnaris (FCU)
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2
Q

Origin of PT

A

Humeral Head:
Medial epicondyle

Ulnar Head:
Coronoid process

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3
Q

Origin of PT

A

Humeral Head:
Medial epicondyle

Ulnar Head:
Coronoid process

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4
Q

Insertion of PT

A

Midlat radial shaft (pronator tubercle)

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5
Q

Innervation of PT

A

Median n

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6
Q

Action of PT

A

Pronates forearm
Assists with elbow flexion

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7
Q

Origin of FCR

A

Common flexor tendon (medial epicondyle)

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8
Q

Insertion of FCR

A

Base of 2nd and 3rd MC (palmar surface)

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9
Q

Innervation of FCR

A

Median n

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10
Q

Action of FCR

A

Flexes and radially deviates (abduct) wrist

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11
Q

Which mm has origins in CFT / CFO

A

Flexor carpi radialis
Palmaris Longus
Flexor carpi ulnaris

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12
Q

Origin of PL

A

CFT

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13
Q

Insertion of PL

A

Palmar Carpal Ligament
Palmar aponeurosis

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14
Q

Innervation of Palmaris Longus

A

Median

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15
Q

Action of Palmaris Longus

A

Flexes wrist
Tightens aponeurosis

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16
Q

Origin of Flexor Carpi Ulnaris

A

CFT

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17
Q

Insertion of Flexor CU

A

Pisiform
Hook of Hamate
Base of 5th MC

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18
Q

Innervation of FCU

A

Ulnar n

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19
Q

Action of FCU

A

Flexes wrist
Ulnar deviation of wrist

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20
Q

Origin of Flexor digitorum superficialis

A

Humeroulnar head: med epicondyle and coronoid process

Radial head:
Oblique line of radius

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21
Q

Insertion of Flexor Digitorum Superficialis

A

Shaft of middle phalanges of digit 2-5.

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22
Q

Innervation of Flexor Digitorum Superficialis

A

Median nerve

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23
Q

Action of FDS

A

Flexes MCP and PIP’s finger 2-5

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24
Q

Muscles of deep compartment of ant forearm

A

Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

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25
Q

Origin of flexor Digitorum profundus

A

Proximal 2/3 of ant ulna and Interosseus membrane

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26
Q

Origin of flexor Digitorum profundus

A

Proximal 2/3 of ant ulna and Interosseus membrane

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27
Q

Insertion of FDP

A

Base of distal phalanges of digits 2-5

28
Q

Innervation of FDP

A

Median and ulnar nerve

29
Q

Action of FDP

A

Flexes DIP
Assists PIP and wrist flexion

30
Q

Origin of Flexor Pollicis Longus

A

Ant surface of radius & IO membrane

31
Q

Insertion of Flexor Pollicis Longus

A

Base of distal phalanx of first digit

32
Q

Innervation of FPL

A

Median nerve - IO branch

33
Q

Action of FPL

A

Flexes IP and MCP thumb

34
Q

Origin of Pronator Quadratus

A

Distal 1/4 of ant surface of ulna

35
Q

Insertion of PQ

A

Distal 1/4 of ant surface of radius

36
Q

Innervation of PQ

A

Median Nerve - IO branch

37
Q

Action of PQ

A

Pronates forearm

38
Q

Insertion of FDS

A

Shaft of middle phalanges digits 2-5

39
Q

Action of FDS

A

Flexes MCP and PIP
Assists wrist flexion

40
Q

Name muscles of the post superficial comp of forearm

A

Brachioradialis
Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis
Extensor Digiti Minimi
Extensor Carpi Ulnaris

41
Q

Name mm originating in CET

A

ECRB
ECU
Extensor Digitorum
Extensor Digiti Minimi

42
Q

Origin of brachioradialis

A

Lateral supracondylar ridge and lateral intermuscular septum

43
Q

Insertion of brachioradialis

A

Base of styloid process of radius

44
Q

Innervation of brachioradialis

A

Radial nerve

45
Q

Action of brachioradialis

A

Flexes elbow joint and rotates forearm to midprone position

46
Q

Origin of extensor carpi radialis longus

A

Distal 1/3 of lateral supracondylar ridge

47
Q

Insertions of extensor carpi radialus longus

A

Base of 2nd mc

48
Q

Innervation of extensor carpi radialis longus

A

Radial nerve

49
Q

Action of extensor carpi radialis longus

A

Extends and radially deviates wrist

50
Q

Origin of extensor carpi radialis brevis

A

Lateral epicondyle via CET

51
Q

Insertion of extensor carpi radialis brevis

A

Base of 3rd MC (dorsal and radial surface)

52
Q

Innervation of ECRB

A

Radial nerve

53
Q

Action of ECRB

A

Extends and abducts wrist

54
Q

Origin of Extensor Digitorum

A

Lat epicondyle via CET

55
Q

Insertion of Extensor Digitorum

A

Middle and distal phalanges of digits 2-5

56
Q

Innervation of Extensor Digitorum

A

Deep Radial Nerve

57
Q

Action of Extensor Digitorum

A

Extends MCP’s and PIP’s digits 2-5

Assists wrist extension

58
Q

Origin of Extensor Digiti Minimi

59
Q

Insertion of Extensor Digiti Minimi

A

Tendon of extensor digitorum on 5th digit (extensor expansion or hood)

60
Q

Innervation of Extensor Digiti Minimi

A

Deep Radial n

61
Q

Action of Extensor Digiti Minimi

A

Extends 5th digit at MCP and IP joints

62
Q

Origin of Extensor Carpi Ulnaris

63
Q

Extensor Carpi Ulnaris Insertion

A

Base of 5th MC ( ulnar surface)

64
Q

Innervation of Extensor Carpi Ulnaris

A

Deep Radial Nerve

65
Q

Action of extensor carpi ulnaris

A

Extends and adducts wrist

RMT Term 1 (6 decks)

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