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Gross Anatomy Exam 4 > Muscles > Flashcards

Muscles Flashcards

(142 cards)

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1
Q

Insertion of gluteus maximus

A

Upper fibers - iliotibial tract

Lower fibers - Gluteal tuberosity of femur

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2
Q

Innervation of gluteus maximus

A

Inferior gluteal nerve (L5-S2)

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3
Q

Action of gluteus maximus

A

Entire muscle: Extension and external rotation of hip in sagittal and coronal planes

Upper fibers: abduction
Lower fibers: adduction

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4
Q

Origin of gluteus medius

A

Ilium (Gluteal surface, between posterior and anterior gluteal lines, below iliac crest)

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5
Q

Insertion of gluteus medius

A

Greater trochanter of femur (lateral surface)

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6
Q

Innervation of gluteus medius

A

Superior gluteal nerve (L4-S1)

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7
Q

Action of gluteus medius

A

Entire muscle: abduct hip, stabilize pelvis in coronal plane
Anterior: Flexion and internal rotation
Posterior: Extension and external rotation

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8
Q

Origin of gluteus minimus

A

Ilium (Gluteal surface, between anterior and inferior gluteal lines)

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9
Q

Insertion of gluteus minimus

A

Greater trochanter of femur (anterolateral surface)

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10
Q

Innervation of gluteus minimus

A

Superior gluteal nerve (L4-S1)

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11
Q

Action of gluteus minimus

A

Entire muscle: Abduction of hip, Stabilizes pelvis in coronal plane
Anterior: Internal rotation and flexion
Posterior: External rotation and extension

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12
Q

Origin of tensor fascia latae

A

Anterior Superior Iliac Spine

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13
Q

Insertion of tensor fascia latae

A

Iliotibial tract

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14
Q

Innervation of tensor fascia latae

A

Superior Gluteal nerve (L4-S1)

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15
Q

Action of tensor fascia latae

A
  • Tenses fascia lata

- Hip joint: abduction, internal rotation, flexion

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16
Q

Origin of piriformis

A

Pelvic surface of sacrum

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17
Q

Insertion of piriformis

A

Apex of greater trochanter of femur

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18
Q

Innervation of piriformis

A

Direct branches from sacral plexus (S1-S2)

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19
Q

Action of piriformis

A

Hip joint: Abduction, external rotation, extension

-Stabilizes hip joint

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20
Q

Origin of obturator internus

A

Inner surface of obturator membrane and bony boundaries

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21
Q

Insertion of obturator internus

A

Medial surface of greater trochanter of femur

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22
Q

Innervation of obturator internus

A

Nerve to obturator internus (L5-S1)

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23
Q

Action of obturator internus

A

Hip joint: External rotation, extension, adduction

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24
Q

Origin of Gemelli

A

Gemelli Superior - Ischial Spine

Gemelli Inferior - Ischial Tuberosity

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25
Insertion of Gemelli
Jointly with obturator internus (medial surface of greater trochanter)
26
Innervation of gemelli
Superior gemelli - nerve to obturator internus (L5-S1) | Inferior gemelli - nerve to quadratus femoris (L5-S1)
27
Action of gemelli
Hip joint: External rotation, Extension, adduction | *Active in abduction depending on joint position
28
Origin of quadratus femoris
Lateral border of ischial tuberosity
29
Insertion of quadratus femoris
Intertrochanteric crest of femur
30
Innervation of quadratus femoris
Direct branches of sacral plexus (L5-S1)
31
Action of quadratus femoris
Hip joint: external rotation and adduction
32
Origin of gluteus maximus
- Sacrum (lateral, dorsal surface) - Ilium (Gluteal surface - Thoracolumbar fascia - Sacrotuberous ligament
33
Origin of sartorius
Anterior Superior Iliac Spine
34
Insertion of sartorius
Medial to tibial tuberosity (As pes anserinus)
35
Innervation of sartorius
Femoral nerve (L2-L3)
36
Action of sartorius
Hip joint - flexion, abduction, external rotation | Knee joint - flexion, internal rotation
37
Origin of rectus femoris
Anterior inferior iliac spine, Acetabular roof of hip joint
38
Insertion of rectus femoris
Tibial tuberosity via patellar ligament
39
Innervation of rectus femoris
Femoral nerve (L2-L4)
40
Action of rectus femoris
Hip joint: Flexion | Knee joint: Extension
41
Origin of vastus medialis
Linea aspera (medial lip), Intertrochanteric line (distal part)
42
Insertion of vastus medialis
Tibial tuberosity via patellar ligament
43
Innervation of vastus medialis
Femoral nerve (L2-L4)
44
Action of vastus medialis
Knee joint - extension
45
Origin of vastus lateralis
Linea aspera (lateral lip), Greater trochanter (lateral surface)
46
Insertion of vastus lateralis
Tibial tuberosity (Via patellar ligament)
47
Action of vastus lateralis
Knee joint: extension
48
Origin of vastus intermedius
Femoral shaft (anterior side)
49
Insertion of vastus intermedius
Tibial tuberosity (Via patellar ligament)
50
Innervation of vastus intermedius
Femoral nerve (L2-L4)
51
Action of vastus intermedius
Knee joint - extension
52
Origin of pectineus
Pectin pubis
53
Insertion of pectineus
Pectineal line of femur, proximal linea aspera of femur
54
Innervation of pectineus
Femoral nerve, Obturator nerve (L2-L3)
55
Action of pectineus
- Adduction, External rotation, slight flexion | - Stabilizes pelvis in coronal and sagittal planes
56
Origin of Adductor Longus
- Superior Pubic Ramus | - Anterior pubic symphysis
57
Insertion of adductor longus
Middle third of linea aspera ( on femur)
58
Innervation of adductor longus
Obturator nerve (L2-L4)
59
Action of adductor longus
Hip joint: Adduction and flexion (up to 70 degrees) - Past 80 degrees of flexion --> Extension - Stabilize pelvis in coronal and sagittal planes
60
Origin of adductor brevis
Inferior pubic ramus
61
Insertion of adductor brevis
Superior third of linea aspera (of femur)
62
Innervation of adductor brevis
Obturator nerve (L2-L3)
63
Action of adductor brevis
Hip joint: Adduction and flexion (up to 70 degrees) - Extension (past 80 degrees of flexion) - Stabilize pelvis in sagittal and coronal planes
64
Origin of gracilis
Inferior pubic ramus (below pubic symphysis)
65
Insertion of gracilis
Medial to tibial tuberosity (As pes anserinus)
66
Action of gracilis
Hip joint: Flexion and adduction | Knee joint: Flexion and internal rotation
67
Origin of obturator externus
Outer surface of obturator membrane and bony boundaries
68
Insertion of obturator externus
Trochanteric fossa of femur
69
Innervation of obturator externus
Obturator nerve ( L3-L4)
70
Action of obturator externus
Hip joint - adduction, external rotation | Stabilize pelvis in sagittal plane
71
Origin of adductor magnus
Inferior pubic ramus, Ischial ramus, Ischial tuberosity
72
Insertion of adductor magnus
Deep: (Fleshy insertion) - Medial lip of linea aspera Superficial: (Tendinous insertion) - Adductor tubercle of femur
73
Innervation of adductor magnus
Deep - Obturator nerve (L2-L4) | Superficial - Tibial nerve (L4)
74
Action of Adductor magnus
Hip joint: Adduction, extension, slight flexion **Tendinous insertion - internal rotation Stabilizes pelvis in coronal and sagittal planes
75
Origin of semimembranosus
Ischial tuberosity
76
Insertion of semimembranosus
Medial tibial condyle, Oblique popliteal ligament, Popliteus fascia
77
Innervation of semimembranosus
Tibial nerve (L5-S2)
78
Action of semimembranosus
Hip joint - extension, stabilize pelvis | Knee joint - flexion and internal rotation
79
Origin of semitendinosus
Ischial tuberosity, Sacrotuberous ligament
80
Insertion of semitendinosus
Medial to tibial tuberosity (As pes anserinus)
81
Innervation of semitendinosus
Tibial nerve (L5-S2)
82
Action of semitendinosus
Hip joint - Extension, stabilize pelvis | Knee joint - flexion and internal rotation
83
Origin of Biceps femoris (Long Head)
Ischial tuberosity, Sacrotuberous Ligament
84
Insertion of biceps femoris (long head)
Head of fibula
85
Innervation of biceps femoris (long head)
Tibial nerve (L5-S2)
86
Action of biceps femoris (long head)
Hip joint - extension, stabilize pelvis | Knee joint - flexion, external rotation
87
Origin of biceps femoris (short head)
Lateral linea aspera (Middle 3rd of femur)
88
Insertion of biceps femoris (short head)
Head of fibula
89
Innervation of biceps femoris (short head)
Common fibular nerve (L5-S2)
90
Action of biceps femoris short head
Knee joint - flexion, external rotation
91
Origin of tibialis anterior
- Tibia (upper 2/3 lateral surface) - Superficial crural fascia - Interosseus membrane
92
Insertion of tibialis anterior
- Medial cuneiform (medial and plantar surfaces) | - Base of 1st metatarsal
93
Innervation of tibialis anterior
Deep fibular nerve (L4-L5)
94
Action of tibialis anterior
Talocrural joint - dorsiflexion | Subtalar joint - inversion (supination)
95
Origin of extensor hallucis longus
Middle 3rd of medial surface of fibula
96
Insertion of extensor hallucis longus
Base of distal phalanx of toe and dorsal aponeurosis
97
Innervation of extensor hallucis longus
Deep fibular nerve (L4-L5)
98
Action of extensor hallucis longus
Talocrural joint - Dorsiflexion Subtalar joint - Inversion and eversion MTP and IP joints of toe - extension
99
Origin of extensor digitorum longus
- Lateral tibial condyle - Head and medial surface of fibula - interosseus membrane
100
Insertion of extensor digitorum longus
Base of distal phalanges of toes 2-5, dorsal aponeurosis
101
Innervation of extensor digitorum longus
Deep fibular nerve (L4-L5)
102
Action of extensor digitorum longus
Talocrural joint - dorsiflexion Subtalar joint - eversion (pronation) MTP and IP joints of toes 2-5 - extension
103
Origin of fibularis tertius
Distal fibula (anterior surface)
104
Insertion of fibularis tertius
Base of 5th metatarsal
105
Innervation of fibularis tertius
Deep fibular nerve (L4-L5)
106
Action of fibular tertius
Talocrural joint - dorsiflexion | Subtalar joint - eversion
107
Origin of fibularis longus
- Head and proximal two thirds of lateral surface of fibula | - Intermuscular septa
108
Insertion of fibularis longus
Medial cuneiform (plantar surface), Base of 1st metatarsal
109
Innervation of fibularis longus
Superficial fibular nerve (L5-S1)
110
Action of fibularis longus
Talocrural joint - Plantarflexion Subtalar joint - eversion Supports transverse arch of foot
111
Origin of fibularis brevis
Distal half of lateral surface of fibula, intermuscular septa
112
Insertion of fibularis brevis
Tuberosity of 5th metatarsal
113
Innervation of fibularis brevis
Superficial fibular nerve (L5-S1)
114
Action of fibularis brevis
Talocrural joint - Plantarflexion | Subtalar joint - Eversion
115
Origin of Gastrocnemius
Lateral head - Lateral epicondyle of femur | Medial head - Medial epicondyle of femur
116
Insertion of gastrocnemius
Calcaneal tuberosity via calcaneal tendon (achilles tendon)
117
Innervation of gastrocnemius
Tibial nerve (S1-S2)
118
Action of gastrocnemius
Talocrural joint - Plantarflexion | Knee joint - Flexion
119
Origin of soleus
Fibula (head, neck, posterior surface) | Tibia (Soleal line via tendinous arch)
120
Insertion of soleus
Calcaneal Tuberosity via calcaneal tendon (Achilles tendon)
121
Innervation of soleus
Tibial nerve (S1-S2)
122
Action of soleus
Talocrural joint - plantarflexion
123
Origin of plantaris
Lateral epicondyle of femur (proximal to lateral head of gastrocnemius
124
Insertion of plantaris
Calcaneal tuberosity
125
Innervation of plantaris
Tibial nerve (S1-S2)
126
Origin of tibialis posterior
- Adjacent borders of tibia and fibula | - Interosseus membrane
127
Insertion of tibialis posterior
Navicular tuberosity Medial, Intermediate, Lateral cuneiform bones Bases of 2-4th metatarsals
128
Innervation of tibialis posterior
Tibial nerve (L4-L5)
129
Action of tibialis posterior
Talocrural joint - plantarflexion Subtalar joint - Inversion -Supports transverse and longitudinal arches
130
Origin of flexor digitorum longus
Middle 3rd of posterior surface of tibia
131
Insertion of flexor digitorum longus
Base of distal phalanges of toes 2-5
132
Innervation of flexor digitorum longus
Tibial nerve (L5-S2)
133
Action of flexor digitorum longus
Talocrural joint - Plantarflexion Subtalar joint - Inversion MTP and IP Joints of toes 2-5 - flexion
134
Origin of flexor hallucis longus
Distal 2/3 of posterior surface of fibula, interosseus membrane
135
Insertion of flexor hallucis longus
Base of distal phalanx of toe
136
Innervation of flexor hallucis longus
Tibial nerve (L5-S2)
137
Action of flexor hallucis longus
Talocrural joint - plantarflexion Subtalar joint - inversion MTP and IP joints of toe - flexion *Supports medial longitudinal arch
138
Origin of popliteus
Lateral femoral condyle, Posterior horn of lateral meniscus
139
Insertion of popliteus
Posterior surface of tibia (above origin of soleus)
140
Innervation of popliteus
Tibial nerve (L4-S1)
141
Action of popliteus
Knee joint - flexion and internal rotation
142
Innervation of gracilis
Obturator nerve (L2-L3)

Gross Anatomy Exam 4 (2 decks)

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