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Anatomy > Unit 2 Muscles > Flashcards

Unit 2 Muscles Flashcards

1
Q

Bicep Brachii Proximal Attachment

A

Short head: coracoid process of scapula
Long Head: supraglenoid tubercle of scapula

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2
Q

Bicep Brachii Distal Attachment

A
  1. Radial Tuberosity
  2. Fascia of forearm via bicipital aponeurosis
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3
Q

Bicep Brachii Innervation

A

Musculocutaneous Nerve (c5, c6, c7)

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4
Q

Bicep Brachii Action

A
  1. Supinates forearm
  2. Flexes elbow

Short head: resists shoulder dislocation

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5
Q

Coracobrachialis proximal attachment

A

Coracoid process

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6
Q

Coracobrachialis distal attachment

A

Middle surface of humerus

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7
Q

Coracobrachialis innervation

A

Musculocutaneous Nerve (c5, c6, c7)

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8
Q

Coracobrachialis action

A
  1. Flex arm
  2. Adduct Arm
  3. Resists dislocation of humerus
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9
Q

Triceps Brachii Proximal Attachment

A

Long head: infraglenoid tubercle
Lateral head: posterior surface of the humerus, superior to radial groove
Medial head: posterior surface of humerus, and inferior to Radial groove.

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10
Q

Triceps Brachii Distal Attachment

A
  1. Proximal end of olecranon of ulna
  2. Fascia of forearm
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11
Q

Triceps Brachii Innervation

A

Radial nerve (c6, c7, c8)

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12
Q

Triceps Brachii Action

A
  1. Extends elbow

Long head: resists dislocation of humerus

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13
Q

Anterior Scalene Proximal Attachment

A

Transverse processes of c3-c6

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14
Q

Anterior Scalene Distal attachment

A

1st rib

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15
Q

Anterior Scalene innervation

A

Cervical spinal nerve (c4, c5, c6)

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16
Q

Anterior Scalene action

A
  1. Flex neck laterally
  2. Elevate 1st rib during forced inhalation
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17
Q

Middle Scalene Action

A
  1. Flex neck laterally
  2. Elevate 1st rib during forced inhalation
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18
Q

Posterior Scalene Action

A
  1. Flex neck laterally
  2. Elevate 2nd rib during forced inhalation
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19
Q

Middle Scalene Proximal Attachment

A

Transverse processes of C5-C7

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20
Q

Middle Scalene Distal Attachment

A

1st rib

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21
Q

Middle Scalene Innervation

A

Anterior Rami of spinal nerves

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22
Q

Posterior Scalene Proximal Attachment

A

Transverse Process c5-c7

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23
Q

Posterior Scalene Distal Attachment

A

2nd rib

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24
Q

Posterior Scalene Innervation

A

Anterior rami of spinal nerves c7-c8

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25
Q

Brachialis Proximal Attachment

A

Distal anterior surface of humerus

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26
Q

Brachialis Distal Attachment

A
  1. Ulnar tuberosity
  2. Coronoid Process
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27
Q

Brachialis Innervation

A
  1. Musculocutaneous N. C5-C6
  2. Small Branch from Radial C5 & C7
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28
Q

Brachialis Action

A

Flexes elbow in all positions

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29
Q

Brachioradialis Proximal Attachment

A

lateral supra-epicondylar ridge of humerus

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30
Q

Brachioradialis Distal Attachment

A

Lateral surface of distal radius proximal to styloid process

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31
Q

Brachioradialis Innervation

A

Radial N. (C5, C6, C7)

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32
Q

Brachioradialis Action

A
  1. Flex elbow
  2. Assits to pronate and supinate forearm when resisted
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33
Q

Anconeus Proximal Attchment

A

Lateral Epicondyle

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34
Q

Anconeus Distal Attachment

A

Lateral Olecranon

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35
Q

Anconeus Innervation

A

Radial (C7, C8, T1)

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36
Q

Anconeus Action

A
  1. Assist tricep with extending elbow
  2. Stabilizes elbow
  3. Abduct ulna during pronation
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37
Q

Supinator Proximal Attachment

A
  1. Lateral Epicondyle
  2. Radial Collateral Lig
  3. Annular Lig
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38
Q

Supinator Distal Attachment

A

Lateral radius

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39
Q

Supinator innervation

A

Posterior Interosseous N. PIN of Radial Nerve (C7, C8)

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40
Q

Supinator Action

A

Supinates forearm

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41
Q

Pronator Teres Proximal Attachment

A
  1. Medial Epicondyle (common flexor tendon)
  2. Coronoid Process
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42
Q

Pronator Teres Distal Attachment

A

Middle radius

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43
Q

Pronator Teres Innervation

A

Median Nerve (C6-C7)

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44
Q

Pronator Teres Action

A

Pronate forearm

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45
Q

Flexor Carpi Radialis Proximal Attachent

A

Medical Epicondyle (common flexor tendon)

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46
Q

Flexor Carpi Radialis Distal Attachment

A

Bases of 2-3 metacarpals

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47
Q

Flexor Carpi Radialis Innervation

A

Median Nerve (C6-C7)

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48
Q

Flexor Carpi Radialis Action

A
  1. Flex the wrist
  2. Radial deviation
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49
Q

Palmaris Longus Proximal Attachment

A

Medial Epicondyle (common flexor tendon)

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50
Q

Palmaris Longus Distal Attachment

A
  1. Flexor retinaculum
  2. Palmar Aponeurosis
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51
Q

Palmaris Longus Innervation

A

Median Nerve (C7-C8)

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52
Q

Palmaris Longus Action

A
  1. Tense palmar aponeurosis
  2. Flex wrist
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53
Q

Flexor Carpi Ulnaris Proximal Attachment

A

Humeral Head: Medial Epicondyle (Common Flexor tendon)
Ulnar Head: Posterior ulna

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54
Q

Flexor Carpi Ulnaris Distal Attachment

A
  1. Hook of hamate
  2. Pisiform
  3. Base of 5th metacarpal
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55
Q

Flexor Carpi Ulnaris Innervation

A

Ulnar Nerve (C7-C8)

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56
Q

Flexor Carpi Ulnaris Action

A

1.Flex wrist
2. Ulnar Deviation

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57
Q

Pronator Quadratus Proximal Attachment

A
  1. anterior surface of distal ulna
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58
Q

Pronator Quadratus Distal Attachment

A

anterior surface of distal radius

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59
Q

Pronator Quadratus Innervation

A

Median nerve (AIN) (C8-T1)

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60
Q

Pronator Quadratus Action

A
  1. Pronate Forearm
  2. Bind radius and ulna
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61
Q

Extensor Carpi Radialis Longus Proximal Attachment

A

Lateral Supraepicondylar ridge

62
Q

Extensor Carpi Radialis Longus Distal Attachment

A

base of 2nd metacarpal

63
Q

Extensor Carpi Radialis Longus Innervation

A

Radial Nerve (C6, C7, C8)

64
Q

Extensor Carpi Radialis Longus Action

A
  1. Extend wrist
  2. Radial Deviation
  3. Fist Clenching
65
Q

Extensor Carpi Radialis Brevis Proximal Attachment

A

Lateral epicondyle (Common extensor tendon)

66
Q

Extensor Carpi Radialis Brevis Distal Attachment

A

Dorsal Base of 3rd metacarpal

67
Q

Extensor Carpi Radialis Brevis Innervation

A

Radial Nerve (C6, C7, C8)

68
Q

Extensor Carpi Radialis Brevis Action

A
  1. Extend wrist
  2. Radial deviation
69
Q

Extensor Digitorum Proximal Attachment

A

Lateral Epicondyle (common extensor tendon)

70
Q

Extensor Digitorum Distal Attachment

A

Extensor expansions of medial 4 digits

71
Q

Extensor Digitorum Innervation

A

Radial Nerve (C7, C8)

72
Q

Extensor Digitorum Action

A

Extends medial 4 long digits

73
Q

Extensor Digiti Minimi Proximal Attachment

A

Lateral epicondyle (common extensor tendon)

74
Q

Extensor Digiti Minimi Distal Attachment

A

Extensor expansions of 5th digit

75
Q

Extensor Digiti Minimi Innervation

A

Radial Nerve (C7, C8)

76
Q

Extensor Digiti Minimi Action

A

Extends 5th digit @MCP & IP

77
Q

Extensor Carpi Ulnaris Proximal Attachment

A

lateral epicondyle (common extensor tendon)

78
Q

Extensor Carpi Ulnaris Distal Attachment

A

Base of 5th metacarpal

79
Q

Extensor Carpi Ulnaris Innervation

A

Radial Nerve (C7, C8)

80
Q

Extensor Carpi Ulnaris Action

A
  1. Extend Wrist
  2. Ulnar Deviation
81
Q

Extensor indicis Proximal Attachment

A
  1. Posterior, distal ulna
  2. Interosseous membrane
82
Q

Extensor indicis Distal Attachment

A

Extensor expansion of 2nd digit

83
Q

Extensor indicis Innervation

A

Radial (PIN) Nerve (C7, C8)

84
Q

Extensor indicis Action

A
  1. Extend 2nd digit at MCP
  2. Assist to extend wrist
85
Q

Abductor Pollicis Longus Proximal Attachment

A
  1. Posterior surface of ulna, radius, and interosseous membrane
86
Q

Abductor Pollicis Longus Distal Attachment

A

Base of 1st metacarpal

87
Q

Abductor Pollicis Longus Innervation

A

Radial (PIN) Nerve (C7-C8)

88
Q

Abductor Pollicis Longus Action

A
  1. Radially Abduct thumb
  2. Extend thumb
89
Q

Extensor Pollicis Brevis Proximal Attachment

A
  1. Posterior radius,
  2. interosseous membrane
90
Q

Extensor Pollicis Brevis Distal Attachment

A

Base of proximal phalanx of thumb

91
Q

Extensor Pollicis Brevis Innervation

A

Radial (PIN) Nerve (C7-C8)

92
Q

Extensor Pollicis Brevis Action

A

Extend thumb at MCP and CMC

93
Q

Extensor Pollicis Longus Proximal Attachment

A
  1. Posterior ulna,
  2. interosseous membrane
94
Q

Extensor Pollicis Longus Distal Attachment

A

Base of distal phalanx of thumb

95
Q

Extensor Pollicis Longus Innervation

A

Radian (PIN) Nerve (C7-C8)

96
Q

Extensor Pollicis Longus Action

A

Extend thumb at CMC, MCP, & IP

97
Q

Flexor Digitorum Superficialis Proximal Attachment

A

Humero-Ulnar head: 1. Medial Epicondyle (Common flexor tendon)
2. Coronoid Process

Radial Head:
anterior radius

98
Q

Flexor Digitorum Superficialis Distal Attachment

A

Shafts of middle phalanges of middle 4 digits

99
Q

Flexor Digitorum Superficialis Innervation

A

Median Nerve (C7, C8, T1)

100
Q

Flexor Digitorum Superficialis Action

A
  1. Flexes middle phalanges at PIP joints
  2. Flexes proximal phalanges at MCP joint
101
Q

Flexor Digitorum Profundus Proximal Attachment

A
  1. Proximal ulna
  2. interosseous membrane
102
Q

Flexor Digitorum Profundus Distal Attachment

A

Medial Part: Bases of distal phalanges of digits 4-5
Lateral Part: bases of distal phalanges of digits 2-3

103
Q

Flexor Digitorum Profundus Innervation

A

Digits 2-3: Median (AIN) nerve (C8-T1)
Digits 4-5: Ulnar Nerve (C8-T1)

104
Q

Flexor Digitorum Profundus Action

A
  1. Flex 2nd-5th fingers and MCP, PIP, & DIP
  2. Assist to flex wrist with RC joint
105
Q

Flexor Pollicis Longus Proximal Attachment

A
  1. Anterior radius
  2. adjacent interosseous membrane
106
Q

Flexor Pollicis Longus Distal Attachment

A

Base of distal phalanx of thumb

107
Q

Flexor Pollicis Longus Innervation

A

Median (AIN) nerve (C8-T1)

108
Q

Flexor Pollicis Longus Action

A

Flexes Phalanges of 1st digit (thumb)

109
Q

Pronator Quadratus Proximal Attachment

A

Medial, anterior surface of distal ulna

110
Q

Pronator Quadratus Distal Attachment

A

lateral, anterior surface of distal radius

111
Q

Pronator Quadratus Innervation

A

Median Nerve (AIN) (C8-T1)

112
Q

Pronator Quadratus Action

A
  1. Pronate forearm
  2. Bind ulna and radius together
113
Q

Flexor Pollicis Brevis Proximal Attachment

A
  1. Flexor retinaculum
  2. Tubercle of Scaphoid
  3. Tubercle of trapezium
114
Q

Flexor Pollicis Brevis Distal Attachment

A

base of Proximal phalanx of thumb

115
Q

Flexor Pollicis Brevis Innervation

A

Superficial head: Median (recurrent branch) (c8-T1)

116
Q

Flexor Pollicis Brevis Action

A
  1. Flex the thumb at CMC & MCP joints
  2. Assist in opposition of thumb
117
Q

Abductor Pollicis Brevis Proximal Attachment

A
  1. Flexor Retinaculum
  2. Tubercle of scaphoid
  3. Tubercle of trapezium
118
Q

Abductor Pollicis Brevis Distal Attachment

A

base of proximal phalanx of thumb

119
Q

Abductor Pollicis Brevis Innervation

A

Median (Recurrent Branch) (C8-T1)

120
Q

Abductor Pollicis Brevis Action

A
  1. Abduct the thumb at CMC and MCP joint
  2. Assist in opposition of thumb
121
Q

Opponens Pollicis Proximal Attachment

A
  1. Flexor Retinaculum
  2. Tubercle of scaphoid
  3. Tubercle of Trapezium
122
Q

Opponens Pollicis Distal Attachment

A

1st metacarpal

123
Q

Opponens Pollicis Innervation

A

Median (recurrent branch) (c8-T1)

124
Q

Opponens Pollicis Action

A
  1. Oppose thumb
    (Draws 1st metacarpal medially
    Rotates 1st metacarpal medially)
125
Q

Flexor Digiti Minimi Proximal Attachment

A
  1. Hook of hamate
  2. Flexor Retinaculum
126
Q

Flexor Digiti Minimi Distal Attachment

A

base of proximal phalanx of 5th digit

127
Q

Flexor Digiti Minimi Innervation

A

Ulnar nerve (deep branch) (C8-T1)

128
Q

Flexor Digiti Minimi Action

A

Flex 5th digit at proximal phalanx

129
Q

Abductor Digiti Minimi Proximal Attachment

A

Pisiform

130
Q

Abductor Digiti Minimi Distal Attachment

A

base of Proximal Phalanx of 5th digit

131
Q

Abductor Digiti Minimi Innervation

A

Ulnar Nerve (deep branch) (C8-T1)

132
Q

Abductor Digiti Minimi Action

A

Abduct 5th finger at MCP joint

133
Q

Opponens Digiti Minimi Proximal Attachment

A
  1. hook of hamate
  2. Flexor Retinaculum
134
Q

Opponens Digiti Minimi Distal Attachment

A

medial border of 5th metacarpal

135
Q

Opponens Digiti Minimi Innervation

A

Ulnar Nerve (deep branch) (C8-T1)

136
Q

Opponens Digiti Minimi Action

A

Opposition of 5th finger at CMC joint

137
Q

Adductor Pollicis Proximal Attachent

A

Oblique: 1. Bases of 2nd and 3rd metacarpals
2. Capitate
3. Adjacent Carpals

Transverse:
shaft of 3rd metacarpal

138
Q

Adductor Pollicis Distal Attachment

A

base of proximal phalanx of thumb

139
Q

Adductor Pollicis Innervation

A

Ulnar Nerve (deep branch) (C8-T1)

140
Q

Adductor Pollicis Action

A

Adducts thumb

141
Q

Palmar Interossei Proximal Attachment

A

Palmar surfaces of 2nd, 4th, and 5th metacarpals (3, unipennate)

142
Q

Palmar Interossei Distal attachment

A
  1. Bases of proximal phalanges of 2nd, 4th, and 5th digits
  2. Extensor expansions of 2nd, 4th, and 5th digits
143
Q

Palmar Interossei innervation

A

Ulnar Nerve (deep branch) (C8-T1)

144
Q

Palmar Interossei Action

A
  1. Adduct 2nd, 4th, and 5th
  2. Assists lumbricals in Flexing MCP
  3. Assistt lumbricals in extending IP Joints
145
Q

Dorsal Interossei Proximal attachment

A

Adjacent sides of 2 metacarpals (4 bipennate)

146
Q

Dorsal Interossei Distal Attachment

A
  1. Bases of proximal phalanges
  2. Extensor expansions of 2nd-4th digits
147
Q

Dorsal Interossei Innervation

A

Ulnar nerve (deep branch) (C8-T1)

148
Q

Dorsal Interossei Action

A
  1. Abduct 2nd-4th digits
  2. Assists lumbricals in Flexing MCP
  3. Assistt lumbricals in extending IP Joints
149
Q

Lumbricals Proximal Attachment

A

1st and 2nd: Lateral 2 tendons of FDP (unipennate

3rd-4th: Medial 3 tendons of FDP (bipennate)

150
Q

Lumbricals Distal attachment

A

Radial sides of extensor expansions of 2nd-5th digits

151
Q

Lumbricals Innervation

A

1st and 2nd: Median (digital branch)(C8-T1)
3rd-4th: Ulnar (deep branch) (C8-T1)

152
Q

Lumbricals Action

A
  1. Flex MCP Joint
  2. Extend IP Joint of 2nd-5th

Anatomy (9 decks)

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