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Flashcards in Pete Muscles Deck (155):
1

SCM innervation

Accessory nerve and central rami C2,C3

2

SCM attachments

Anterior upper manubrium
Medial one third of clavicle
Mastoid process

3

Action of SCM

Extension of head flexion of neck and rotation and lateral flexion

4

Sternalis origin

Manubrium sternum and clavicle

5

Sternalis insertion

Xiphoid process
Pectoral fascia
Lower ribs and costal cartilage

6

Sternalis action

Unknown but may be as proprioception if chest wall or have part in shoulder and chest movement

7

Sternalis innervation

External/internal thoracic nerves
Or
Intercostal nerves

8

What are the 4 deep neck flexors

Longus colli
Longus capitis
Rectus capitis anterior
Rectus capitis lateralis

9

longus colli attachments

Lower part: T1-T3 anterior VB’s to anterior tubercles of C5-C6 TVP’s

Middle part: anterior bodies of C5-T3 to anterior bodies of C3-C4

Upper part: anterior tubercles of C3-C5 TVP’s to anterior tubercle of C1

10

Longus colli innervation

C3-C6 ventral rami

11

Longus capitis origin

Anterior tubercles of of C3-C6 TVP’s

12

Insertion of longus capitis

Basilar portion of occiput

13

Longus capitis innervation

Ventral rami C1-C3

14

Rectus capitis anterior origin

Anterior aspect of C1 lateral mass

15

Rectus capitis anterior insertion

Basilar portion of occiput next to longus capitis

16

Rectus capitis anterior innervation

Ventral rami C1-C2

17

Rectus capitis lateralis origin

Superior surface of C1 TVP

18

Rectus capitis lateralis insertion

Jugular process of occiput

19

Rectus capitis lateralis innervation

Ventral rami C1-C2

20

Rotatores origin

Both brevis one longus extension from each transverse process of T spine

21

Rotatores insertion

Brevis to posterolateral lamina 1 segment above
Longus to SP 2 segments above

22

Rotatores innervation

Segmental from medial branches of dorsal rami

23

Rotatores action

Stabilisation proprioception
Extension

24

intertransversarii attachments

Cervical pairs: one between adjacent anterior tubercles of TVP’s and one between posterior tubercles
Lumbar pairs: one between accessory process below to mamillary process above and one between TVP’s

25

Interrransversarii innervation

Ventral tami of adjacent segments

26

Intertransversarii action

Stabilisation and proprioception
Lateral flexion

27

Multifidus attachments

Between TVP’s (lumbar=mamillary, cervical=articulation process) and SP’s of whole spine and lateral sacrum. Deep layer is to SP one above, middle layer 2 or 3 levels up and superficial 3 or 4 levels up

28

Multifidus innervation

Medial branches of adjacent dorsal rami

29

Action of multifidus

Extension and stabilisation of spine. It becomes dysfunctional in LBP patients and causes laxity in spine

30

Iliocostalis thoracis attachments

C7 TVP and upper border of angles of upper 6 ribs and insert into upper border of angle of lower 6 ribs

31

Iliocostalis lumborum attachments

Lumbar part from TVP L1-L4 and thoracolumbar fascia to medial iliac crest.
Thoracic part from the upper border of angles of lower 8/9 ribs lateral to iliocostalis thoracis insertions and bland in an app Euro’s is with the lumbar portion to attach to medial iliac crest

32

Nerve supply of iliocostalis

Lateral branches of adjacent dorsal rami

33

Iliocostalis action

Extension

34

Origin corachobrachialis

Coracoid process

35

Insertion corachobrachialis

Medial border half way up humerus

36

Nerve corachobrachialis

Musculocutaneous C5-C7

37

Action corachobrachialis

Flexion, horizontal adduction

38

Brachioradialis origin

Proximal 2/3 of lateral supracondylar ridge

39

Insertion brachioradialis

Flat tendon on distal lateral radius

40

Brachioradialis innervation

Radial nerve C5-C6

41

Action brachioradialis

Flexion of elbow

42

Brachialis origin

Lower half of front of humerus and inter muscular septa

43

Brachialis insertion

Broad tendon to ululated tuberosity and Coronoid process

44

Nerve brachialis

Musculocutaneous C5-C6 and radial C7

45

Action of brachialis

Flexion of elbow

46

Anconeus origin

Posterior lateral epicondyle

47

Anconeus insertion

Proximal posterior quarter of ulna and lateral olecranon

48

Anconeus innervation

Radial C6-C8

49

Action anconeus

Extension of elbow

50

Origin supinator

Lateral epicondyle
Radial Collateral ligament
Anular ligament
Supinator crest

51

Supinator insertion

Lateral proximal 1/3 of radius

52

Supinator innervation

Posterior interosseous nerve C6-C7

53

Supinator action

Supination

54

Pronator quadratus origin

Oblique ridge on anterior ulnar shaft and an aponeurosis

55

Pronator quadratus insertion

Distal quarter of anterior radial shaft

56

Pronator quadratus innervation

Anterior interosseous nerve C7-C8

57

Pronator quadratus action

Pronation

58

Origin pronator teres

Humeral head: Medial epicondyle,antebrachial fascia
Ulnar head: medial coronoid process

59

Pronator teres insertion

Lateral surface of radius mid way along shaft at summit of lateral curve

60

Pronator teres innervation

Median nerve C6-C7

61

Pronator teres action

Pronation
Weak flexion

62

Origin FCR

Medial epicondyle
Antebrachial fascia

63

Insertion FCR

Long thin tendon from mid forearm to base of second and third metacarpal on Palmer side

64

Innervation FCR

Median nerve C6-C7

65

Action FCR

Flexion and radial deviation of wrist

66

Palmaris longus origin

Medial epicondyle medial to FCR

67

Insertion palmaris longus

Passes in a long tendon over flexor retinaculum and into palmar aponeurosis

68

Palmaris longus innervation

Median nerve C7-C8

69

Palmaris longus action

Grip strength and flexion of wrist

70

Origin FCU

Humeral head: Medial epicondyle (most medial of flexor muscles)
Ulnar head: Medial olecranon and proximal 2/3rds of posterior ulnar border

71

Insertion FCU

Pisiform, hamate and 5th metacarpal

72

FCU innervation

Ulnar nerve C7-T1

73

FCU action

Flexion and ulnar deviation

74

Origin FDS

Humeroulnar head: Medial epicondyle (deep to Common flexor muscles), ulnar collateral ligament and medial coronoid process

Radial head: anterior radial border

75

Insertion FDS

4 tendons through carpal tunnel then insert on middle phalanges digits 2-5 with a bifurcated insertion for FDP to pass through

76

FDS innervation

Median nerve C8-T1

77

FDS action

Flex MCP, PIP and wrist

78

FDP origin

Upper 3/4 of antero-medial ulna
Medial coronoid process
Ulnar half of interosseous membrane

79

FDP insertion

4 tendons through carpal tunnel deep to FDS and insert on palmar distal phalanges

80

FDP innervation

Medial part = ulnar nerve
Lateral part = median nerve
C8-T1

81

FDP action

Flexion of all finger and wrist joints. Can specifically flex different fingers

82

Origin FPL

Lateral to FDP - arises from anterior radial shaft from just below radial tuberosity to pronator quadratus and also adjacent interosseous membrane

83

FPL insertion

Tendon through carpal tunnel to base of palmar distal phalanx of thumb

84

FPL innervation

Anterior interosseous nerve C7-C8

85

Action of FPL

Flexes thumb

86

ECRL origin

Distal third of lateral supracondylar ridge
Lateral epicondyle
Later intermuscular septum

87

ECRL insertion

Base of second metacarpal

88

ECRL innervation

Radial nerve C6-C7

89

ECRL action

Extension and radial deviation

90

ECRB origin

Lateral epicondyle
Radial collateral ligament
Intermuscular septa

91

ECRL insertion

Base of 3rd metacarpal

92

ECRB innervation

Posterior interosseous nerve C7-C8

93

ECRB action

Extension and radial deviation

94

Extensor digitorum origin

Lateral epicondyle
Intermuscular septa
Antebrachial fascia

95

Extensor digitorum insertion

4 tendons arise in distal forearm and insert onto the 4 distal phalanges with connection between each other at the metacarpals

96

Extensor digitorum innervation

Posterior interosseous nerve C7-C8

97

ED action

It can extend any or all joints it passes

98

Extensor digiti minimi origin

Lateral epicondyle
Intermuscular septa

99

EDM insertion

Distal phalanx is the 5th digit with additional tendon from extensor digitorum

100

EDM innervation

Posterior interosseous nerve C7-C8

101

EDM action

Extends little finger and wrist

102

ECU origin

Lateral epicondyle
Posterior ulnar border

103

ECU insertion

Tubercle on medial side of base of 5th metacarpal

104

ECU innervation

Posterior interosseous nerve C7-C8

105

ECU action

Extension and ulnar deviation

106

AbPL origin

Posterior surface of ulna then distally onto posterior surface of radius

107

AbPL insertion

Radial side of 1st metacarpal and trapezium

108

AbPL innervation

Posterior interosseous nerve C7-C8

109

AbPL action

Abducts thumb and wrist

110

EPB origin

Distal posterior surface of radius and adjacent interosseous membrane

111

EPB insertion

Base of proximal phalanx of thumb

112

EPB innervation

Posterior interosseous nerve C7-C8

113

EPB action

Thumb extension

114

EPL origin

Lateral middle 1/3 of posterior ulna and adjacent interosseous membrane

115

EPL Insertion

Base of distal phalanx of thumb

116

EPL innervation

Posterior interosseous nerve C7-C8

117

EPL action

Thumb extension

118

Extensor Indicis origin

Distal posterior surface of ulna and adjacent interosseous membrane

119

Extensor indicis insertion

Joins the tendons of extensor digitorum for index finger which have attachments on each bone of index finger

120

Extensor indicis innervation

Posterior interosseous nerve C7-C8

121

Extensor indicis action

Wrist extension and independent index finger extension

122

Origin of AbPB

Flexor retinaculum

123

Insertion AbPB

Radial side of base of proximal phalanx

124

Innervation AbPB

Lateral terminal branches of median nerve C8-T1

125

AbPB action

Thumb abduction

126

FPB origin

Supericial head : distal border of flexor retinaculum and trapezium
Deep: trapezoid and capitate bones

127

FPB insertion

Radial side of base of proximal phalanx

128

Innervation FPB

Superficial branch by lateral terminal branches of median nerve and deep branch by ulnar nerve both C8-T1

129

Opponents policis origin

Trapezium and flexor retinaculum

130

Opponens policis insertion

Lateral border of 1st metacarpal

131

Opponens policis innervation

Lateral terminal branch of median nerve C8-T1

132

Adductor policis origin

Capitate, base of 2nd and 3rd metacarpals

133

Adductor policis insertion

Ulnar side of base of proximal phalanx

134

Adductor policis innervation

Deep branch of ulnar nerve C8-T1

135

Origin of abductor digiti minimi

Pisiform and pisohamate ligament

136

Abductor digiti minimi insertion

Ulnar side of base of 5th proximal phalanx

137

AbDM innervation

Deep branch of ulnar nerve C8-T1

138

Origin FDMB

Hook of hamate and flexor retinaculum

139

Insertion FDMB

Ulnar side of base of 5th proximal phalanx

140

Innervation of FDMB

Deep branch of ulnar nerve C8-T1

141

Opponens digiti minimi origin

Hook of hamate and flexor retinaculum

142

Opponens digiti minimi insertion

Ulnar margin or 5th metacarpal

143

Opponens digiti minimi innervation

Deep branch of ulnar nerve C8-T1

144

Origin of palmar interossei

All 4 arise from Respective borders of metacarpal bones to face the middle finger which doesn’t have a palmar interossei

145

Insertion palmar interossei

Dorsal digital expansion and onto bases of respective proximal phalanges

146

Palmar interossei innervation

Deep branch of ulnar nerve C8-T1

147

Palmar interossei action

Adducts fingers and important for grip strength

148

Dorsal interossei origin

Each one has 2 attachments on adjacent sides of 2 metacarpal bones

149

Dorsal interossei insertion

Dorsal digital expansion and into base of the respective proximal phalanx

150

Dorsal interossei innervation

Deep branches of ulnar nerve C8-T1

151

Dorsal interossei action

Abduction of fingers and important in grip strength

152

Lumbricals origin

Tendons of the flexor digitorum profundus

153

Lumbricals insertion

Each pass to radial side of finger and attach with the dorsal digital expansion of the extensor digitorum

154

Lumbricals innervation

1 and 2 by median nerve and 3 and 4 by ulnar nerve both C8-T1

155

Lumbricals action

Extends the interphalangeal joints and flexes the metacarpophalange al joints