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Unit 3 Muscles Flashcards

1
Q

Pectineus proximal attachment

A

Superior Ramus of pubis

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2
Q

Pectineus distal attachment

A

Pectineal line of femur

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3
Q

Pectineus innervation

A

Femoral nerve
L2, L3

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4
Q

Pectineus action

A
  1. Adducts hip.
  2. Slightly flex hip.
  3. External rotation of hip.
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5
Q

Sartorius proximal attachment

A

Anterior superior iliac spine

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6
Q

Sartorius distal attachment

A

Pes anserine

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7
Q

Sartorius innervation

A

Femoral nerve.
L2, L3

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8
Q

Sartorius action

A
  1. Flex hip.
  2. Abduct hip.
  3. Externally rotate hip.
  4. Flex knee
  5. Internally rotate leg with flexed hip.
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9
Q

Gluteus maximus proximal attachment

A
  1. posterior gluteal line of illeum
  2. Dorsal surface of sacrum and coccyx.
  3. Sacrotuberous ligament.
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10
Q

Gluteus maximus distal attachment

A

Most: IT band to Gerdy’s Tubercle
Some: gluteal tuberosity

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11
Q

Gluteus maximus innervation

A

Inferior gluteal nerve
L5, S1, S2

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12
Q

Gluteus maximus action

A
  1. Extend hip joint.
  2. Assist in lateral rotation of hip.
  3. Flex hip.
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13
Q

Gluteus medius proximal attachment

A

Ileum between anterior and posterior gluteal lines

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14
Q

Gluteus medius distal attachment

A

Lateral surface of greater trochanter of femur

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15
Q

Gluteus medius innervation

A

Superior gluteal nerve
L5, S1

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16
Q

Gluteus, medius action

A
  1. Abduct hip.
  2. Internally rotate hip.
  3. Support, contralateral leg while flexing hip.
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17
Q

Gluteus minimus, proximal attachment

A

Ileum between anterior and INFERIOR gluteal lines

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18
Q

Gluteus minimus distal attachment

A

Anterior surface of greater trochanter a femur

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19
Q

Gluteus minimus innervation

A

Superior gluteal nerve
L5, S1

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20
Q

Gluteus, minimus action

A
  1. Abduct hip
  2. Internally rotate hip.
  3. Support, contralateral leg while flexing hip.
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21
Q

Tensor fasciae latae proximal attachment

A
  1. Anterior superior iliac spine.
  2. Anterior iliac crest.
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22
Q

Tensor fasciae latae distal attachment

A

IT band to Gerdy’s Tubercle

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23
Q

Tensor fasciae latae innervation

A

Superior gluteal nerve
L5, S1

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24
Q

Tensor fasciae latae action

A
  1. Internally rotate hip.
  2. Abduct hip.
  3. Support, contralateral leg while flexing hip.
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25
Piriformis proximal attachment
1. Anterior surface of sacrum. 2. Sacrotuberous ligament.
26
Piriformis distal attachment
Greater trochanter of femur
27
Piriformis innervation
Anterior Rami S1, S2
28
Piriformis action
1. Externally rotate, extended hip. 2. Abduct hip while flexed. 3. Stabilize hip.
29
Obturator internus proximal attachment
Pelvic surface of operator membrane, and surrounding bones
30
Obturator internus distal attachment
Greater trochanter
31
Obturator internus innervation
Nerve to obturator internus L5, S1
32
Obturator internus action
1. Externally rotate, extended hip. 2. Abduct hip when flexed. 3. Stabilize hip.
33
Superior gemelli, proximal attachment
Ischial spine
34
Superior gemelli distal attachment
Greater trochanter
35
Superior gemelli innervation
Nerve to obturator internus L5, S1
36
Superior gemelli action
1. Externally rotate, extended hip. 2. Abduct hip one flexed. 3. Stabilize hip.
37
Inferior gemelli proximal attachment
Ischial tuberosity
38
Inferior gemelli distal attachment
Greater trochanter
39
Inferior gemelli innervation
Nerve to quadratic femoris L5, S1
40
Inferior gemelli action
1. Externally rotate, extended hip. 2. Abduct hip on flexed. 3. Stabilize hip.
41
Quadratus femoris proximal attachment
Ischial tuberosity
42
Quadratus femoris distal attachment
Greater trochanter
43
Quadratus femoris Innervation
Nerve to quadratus femoris L5, S1
44
Quadratus femoris action
1. Externally rotate, extended hip. 2. Stabilize hip.
45
Adductor Longus Proximal attachment
Body of pubis
46
Adductor Longus Distal attachment
Linea Aspera of femur
47
Adductor Longus Innervation
Obturator Nerve L2, L3, L4
48
Adductor Longus Action
Adducts hip
49
Adductor Brevis Proximal Attachment
1. Body of pubis 2. Inferior Ramus of pubis
50
Adductor Brevis Distal Attachment
1. Pectineal line of femur 2. Linea aspera of femur
51
Adductor Brevis Innervation
Obturator Nerve L2, L3, L4
52
Adductor Brevis Action
1. Adducts hip 2. Flexes hip
53
Adductor Magnus Proximal Attachment
Adductor Part: 1. Inferior Ramus of pubis 2. Ramus of ischium Hamstring Part: 1. Ischial tuberosity
54
Adductor Magnus Distal Attachment
Adductor Part: 1. Gluteal tuberosity 2. Linea Aspera 3. Medial Supracondylar line Hamstring Part: 1. Adductor tubercle of femur
55
Adductor Magnus Innervation
Adduction Part: 1. Obturator Nerve L2, L3, L4 Hamstring part: 1. Tibial division of sciatic nerve L4
56
Adductor Magnus Action
1. Adducts hip Adductor Part: 1. Flex hip Hamstring Part: 1. Extend hip
57
Gracilis Proximal Attachment
1. Body of pubis 2. Inferior ramus of pubis
58
Gracilis Distal Attachment
Pes anserine
59
Gracilis Innervation
Obturator Nerve L2, L3
60
Gracilis Action
1. Adducts hip 2. Flexes knee 3. Internally rotate hip when flexed
61
Obturator Externus Proximal attachment
1. Margins of obturator foramen 2. Obturator Membrane
62
Obturator Externus Distal Attachment
Greater Trochanter
63
Obturator Externus Innervation
Obturator Nerve L3, L4
64
Obturator Externus Action
1. externally rotates hip 2. Stabilizes hip
65
Rectus Femoris Proximal Attachment
1. Anterior inferior iliac spine 2. Ilium Superior to acetabulum
66
Rectus Femoris Distal Attachment
1. Quadriceps tendon to tibial tuberosity vis patella lig
67
Rectus Femoris Innervation
Femoral Nerve L2, L3, L4
68
Rectus Femoris Action
1. Extend knee 2. Stabilized Knee and hip 3. Help iliopsoas flex hip
69
Vastus Lateralis Proximal Attachment
1. Greater Trochanter 2. Lateral lip of linea aspera
70
Vastus Lateralis Distal Attachment
1. Quadriceps tendon to tibial tuberosity vis patella lig 2. Tibia and patella via aponeuroses
71
Vastus Lateralis Innervation
Femoral Nerve L2, L3, L4
72
Vastus Lateralis Action
Extends knee
73
Vastus Medialis Proximal attachment
1. Intertrochanteric line 2. Medial lip of linea aspera
74
Vastus Medialis Distal attachment
1.Quadriceps tendon to tibial tuberosity via patella lig 2. Tibial and patella via aponeuroses
75
Vastus Medialis Innervation
Femoral nerve L2, L3, L4
76
Vastus Medialis Action
Extend Knee
77
Vastus Intermedius Proximal attachment
Anterior and lateral surfaces of shaft of femur
78
Vastus Intermedius Distal attachment
1. Quadriceps tendon to tibial tuberosity via patella lig
79
Vastus Intermedius Innervation
Femoral Nerve L2, L3, L4
80
Vastus Intermedius Action
Extends knee
81
Semitendinosus Proximal attachment
Ischial Tuberosity
82
Semitendinosus Distal attachment
Pes anserine
83
Semitendinosus Innervation
Tibial division of sciatic nerve L5, S1, S2
84
Semitendinosus Action
1. Extend hip 2. Flex knee 3. Internal rotation when hip is flexed 4. Extend trunk at hip when hip and knee are flexed
85
Semimembranosus Proximal attachment
Ishichial tuberosity
86
Semimembranosus Innervation
Tibial division of sciatic nerve L5, S1, S2
87
Semimembranosus Action
1. Extend hip 2. Flex knee 3. Internal rotation when hip is flexed 4. Extend trunk at hip when hip and knee are flexed
88
Biceps Femoris Proximal Attachment
Long Head: 1. Ischial tuberosity Short Head: 1. Linea Aspera 2. Lateral supracondylar line of femur
89
Biceps Femoris Distal Attachment
Lateral side of head of fibula
90
Biceps Femoris Innervation
Long Head: 1. Tibial division fo sciatic nerve L5, S1, S2 Short Head: 1. Common Fibular division of sciatic nerve L5, S1, S2
91
Biceps Femoris Action
1. Flexes knee w/ flexion 2. External rotation w/ flexion Long Head: 3. Extends hip
92
Gastrocnemius Proximal Attachment
Medial head: 1. Popliteal surface of femur, Lateral Head: 1. lateral condyle of femur
93
Gastrocnemius Distal Attachment
Calcaneus via achilles
94
Gastrocnemius Innervation
Tibial nerve S1, S2
95
Gastrocnemius Action
1. Plantarflexes ankle when extended 2. Raises heel during walking 3. Flexes knee
96
Soleus Proximal Attachment
1. Posterior fibula 2. Soleal line 3. Medial Tibia 4. Tendinous arch b/wn bony attachments
97
Soleus Distal Attachment
Calcaneus via achilles
98
Soleus innervation
Tibial nerve S1, S2
99
Soleus Action
1. Plantarflexes ankle independent of knee 2. Stabilizes ankle
100
Plantaris Proximal Attachment
1. Lateral supracondylar line of femur 2. Oblique popliteal ligament
101
Plantaris Distal Attachment
Calcaneus via achilles
102
Plantaris Innervation
Tibial nerve S1, S2
103
Plantaris Action
Weakly asist in plantarflexion
104
Popliteus Proximal Attachment
1. lateral condyle of femur 2. Lateral meniscus
105
Popliteus Distal Attachment
Posterior tibia above soleal line
106
Popliteus Innervation
Tibial nerve L4, L5, S1
107
Popliteus Action
1. Unlock femur by rotating 5 degrees on fixed tibia 2. Medially rotate tibia of unplanted limb
108
Flexor Hallucis Longus Proximal Attachment
1. Lower posterior surface of fibula 2. Interosseous membrane
109
Flexor Hallucis Longus Distal Attachment
Base of DISTAL phalanx of great toe
110
Flexor Hallucis Longus Innervation
Tibial nerve S2, S3
111
Flexor Hallucis Longus Action
1. Flex great toe 2. Weakly plantarflex 3. Support medial longitudinal arch
112
Flexor Digitorum Longus Proximal Attachment
Posterior tibia inferior to soleal line
113
Flexor Digitorum Longus Distal Attachment
Bases of distal phalanges 2-5
114
Flexor Digitorum Longus Innervation
Tibial nerve S2, S3
115
Flexor Digitorum Longus Action
1. Flexes lateral 4 digits 2. Plantarflexes ankle 3. Support longitudinal arch
116
Tibialis Posterior Proximal Attachment
1. Interosseous membrane 2. posterior tibia, inferior to soleal line 3. Posterior surface of fibula
117
Tibialis Posterior Distal Attachment
1. Tuberosity of navicular 2. cuneiforms 3. cuboid 4. sustenaculum tali of calcaneous 5. bases of 2, 3, 4th metatarsals
118
Tibialis Posterior Innervation
Tibial Nerve L4, L5
119
Tibialis Posterior Action
1. Planttarflexes 2. Invert foot 3. Supports medial longitudinal arch
120
Fibularis Brevis Proximal Attachment
Inferior lateral fibula
121
Fibularis Brevis Distal Attachment
Lateral side of base of 5th metatarsal
122
Fibularis Brevis Innervation
Superficial fibular Nerve L5, S1, S2
123
Fibularis Brevis Action
1. Eversion of subtalar joint 2. Weakly plantarflexes
124
Fibularis Longus Action
1. Eversion of subtalar joint 2. Weakly plantarflexes
125
Fibularis Longus Innervation
Superficial fibular Nerve L5, S1, S2
126
Fibularis Longus Proximal Attachment
1. Head of fibula 2. Superior, lateral fibula
127
Fibularis Longus Distal Attachment
1. Base of 1st metatarsal 2. Medial Cuneiform
128
Tibialis Anterior Proximal Attachment
1. Lateral condyle of tibia 2. Superior 1/2 of tibia 3. Interosseous membrane
129
Tibialis Anterior Distal Attachment
1. Medial Cuneiform 2. Base of 1st Metatarsal
130
Tibialis Anterior Innervation
Deep fibular nerve (L4, L5)
131
Tibialis Anterior Action
1. Dorsiflexes ankle 2. Weakly plantarflexes Subtalar joint
132
Extensor Hallucis Longus Proximal Attachment
1. middle anterior fibula 2. Interosseous membrane
133
Extensor Hallucis Longus Distal Attachment
Base of distal phalanx of great toe
134
Extensor Hallucis Longus Innervation
Deep Fibular Nerve (L5, S1)
135
Extensor Hallucis Longus Action
1. Extends Great toe 2. Dorsiflexes ankle
136
Extensor Digitorum Longus Innervation
Deep Fibular Nerve (L5, S1)
137
Fibularis Tertius Innervation
Deep Fibular Nerve (L5, S1)
138
Extensor Digitorum Longus Proximal Attachment
1. Lateral condyle of tibia 2. Superior surface of fibula 3. Interosseous membrane
139
Extensor Digitorum Longus Distal Attachment
Middle and distal phalanges of 2-5
140
Extensor Digitorum Longus Action
1. Extends 2-5 2. Dorsiflexes ankle
141
Fibularis Tertius Proximal Attachment
1. Inferior anterior surface of fibula 2. Interosseous membrane
142
Fibularis Tertius Distal Attachment
Dorsum of base of 5th metatarsal
143
Fibularis Tertius Action
1. Dorsiflexes ankle 2. Aids in eversion of STJ
144
Extensor Digitorum Brevis Proximal Attachment
1. Calcaneus @ floor of Tarsal Sinus 2. Interosseous Talocalcaneal Ligament 3. Stem of Extensor Retinaculum
145
Extensor Digitorum Brevis Distal Attachment
Long extensor tendons of 2-4
146
Extensor Digitorum Brevis Innervation
Deep fibular nerve (L5)
147
Extensor Digitorum Brevis Action
Aids EDL in extending 2-4 @ MTP and IP joints
148
Extensor Hallucis Brevis Proximal Attachment
1. Calcaneus @ floor of Tarsal Sinus 2. Interosseous Talocalcaneal Ligament 3. Stem of Extensor Retinaculum
149
Extensor Hallucis Brevis Distal Attachment
Dorsal aspect of base of proximal phalanx of great toe
150
Extensor Hallucis Brevis Innervation
Deep fibular nerve (L5)
151
Extensor Hallucis Brevis Action
Aids EHL in extending great toe @ MTP
152
Flexor Digitorum Brevis Proximal Attachment
1. Medial tubercle of tuberosity of calcaneus 2. Plantar aponeurosis 3. Intermuscular septum
153
Flexor Digitorum Brevis Distal Attachment
Both sides of middle phalanges of digits 2-5
154
Flexor Digitorum Brevis Innervation
Medial plantar nerve (L5, S1)
155
Flexor Digitorum Brevis Action
Flex digits 2-5 @MTP and PIP
156
Lumbricals Proximal Attachment
FDL tendons
157
Lumbricals Distal Attachment
Medial part of extensor expansions of 2-5
158
Lumbricals Innervation
Medial 1: Medial plantar nerve (L5, S1) Lateral 3: :Lateral Plantar Nerve (S1, S2, S3)
159
Lumbricals Action
1. Flexion of 2-5 @MTP 2. Extension of 2-5 @PIP and DIP
160
Quadratus Plantae Proximal Atttachment
Medial surface and lateral margin of calcaneus' plantar surface
161
Quadratus Plantae Distal Attachment
FDL tendon
162
Quadratus Plantae Innervation
Lateral Plantar Nerve (S1, S2, S3)
163
Quadratus Plantae Action
Assist FDl with flexion of 2-5 @MTP and IP
164
Flexor Hallucis Brevis Proximal Attachment
1. Plantar surfaces of cuboid 2. Planar surfaces of lateral cuneiforms
165
Flexor Hallucis Brevis Distal Attachment
Both sides of base of proximal phalanx of 1st digit
166
Flexor Hallucis Brevis Innervation
Medial planar nerve (L5, S1)
167
Flexor Hallucis Brevis Action
Flex 1st MTP joint
168
Adductor hallucis Proximal Attachment
Oblique head: Bases of metatarsals 2-4 Transverse Head: Plantar ligaments of MTP joints
169
Adductor hallucis Distal Attachment
Lateral side of base of proximal phalanx of 1st digit
170
Adductor hallucis Innervation
Deep branch of lateral plantar nerve (S1, S2, S3)
171
Adductor hallucis Action
1. Adduct 1st digit 2. Maintain transverse arch
172
Plantar Interossei Proximal attachment
Plantar aspect of medial sides of shafts of metatarsals 3-5
173
Plantar Interossei Distal attachment
Medial sides of bases of phalanges 3-5
174
Plantar Interossei Innervation
Lateral plantar nerve (S1, S2, S3)
175
Plantar Interossei Action
Adduct 3-5 @MTP
176
Dorsal Interossei Proximal attachment
Adjacent sides of shafts of metatarsals 1-5
177
Dorsal Interossei Distal attachment
1st: Medial side of proximal phalanx of 2nd digit 2nd-4th: Lateral sides of 2-4
178
Dorsal Interossei Innervation
Lateral plantar nerve (S1, S2, S3)
179
Dorsal Interossei Action
Abduction of 2-4 @MTP
180
Psoas Major Proximal Attachment
1. TP of T12-L5 vertebrae
181
Semimembranosis distal attachment
1. Posterior part of medial condyle of tibia 2. Oblique popliteal ligament
182
Psoas Major Distal Attachment
Lesser trochanter
183
Psoas Major Innervation
Ventral Rami (L1, L2, L3)
184
Psoas Major Action
Fixed Hip: 1. Flex hip 2. Externally rotate Fixed Foot 1. Flex trunk 2. Anteriorly tilt pelvis
185
Illiacus Proximal Attachment
1. Iliac fossa 2. Sacrum 3. Anterior sacroiliac ligaments
186
Illiacus Distal Attachment
1. Lesser trochanter 2. Psoas tendon
187
Illiacus Innervation
Femoral Nerve (L2,L3, L4)
188
Illiacus Action
Fixed Hip: 1. Flex hip 2. Externally rotate Fixed Foot 1. Flex trunk 2. Anteriorly tilt pelvis

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