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Gross Exam 4 > Muscles OIIA > Flashcards

Muscles OIIA Flashcards

1
Q

iliopsoas

insertion

A

lesser trochanter of femur

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2
Q

iliopsoas

innervation

A

Psoas: db (direct branches) from lumbar plexus
L2-L4

Iliacus: femoral n.
L2-L4

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3
Q

iliopsoas

action

A

Hip: flexion, external rotation

Lumbar spine: unilateral contraction does ipsilateral flexion and
bilateral contraction raises trunk from supine position

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4
Q

gluteus maximus

origin

A

sacrum
ilium
thoracolumbar fascia
sacrotuberous ligament

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5
Q

gluteus maximus

insertion

A

ischial tuberosity

IT band

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6
Q

gluteus maximus

innervation

A

inferior gluteal n.

L5-S2

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7
Q

gluteus maximus

action

A

Hip external rotation, extension, abduction, adduction

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8
Q

gluteus medius

origin

A

ilium b/w anterior and posterior gluteal lines

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9
Q

gluteus medius

insertion

A

greater trochanter of femur- lateral surface

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10
Q

gluteus medius

innervation

A

superior gluteal n.

L4-S1

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11
Q

gluteus medius

action

A

Hip flexion,extension, internal and external rotation, abduction
stabilizes the pelvis

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12
Q

gluteus minimus

origin

A

ilium b/w anterior and inferior gluteal lines

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13
Q

iliopsoas

origin

A

Psoas major:
T12-L4 and IV disks,
L1-L5 vertebrae- transverse processes

Iliacus: iliac fossa

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14
Q

gluteus minimus

insertion

A

greater trochanter of femur- anterolateral surface

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15
Q

gluteus minimus

innervation

A

superior gluteal n.

L4-S1

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16
Q

gluteus minimus

action

A

Hip abduction, flexion, extension, internal and external rotation
stabilizes pelvis

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17
Q

tensor fascia lata

origin

A

ASIS

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18
Q

tensor fascia lata

insertion

A

IT band

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19
Q

tensor fascia lata

innervation

A

superior gluteal n.

L4-S1

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20
Q

tensor fascia lata

action

A

Hip abduction, flexion, internal rotation

tenses fascia lata

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21
Q

piriformis

origin

A

pelvic surface of sacrum

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22
Q

piriformis

insertion

A

apex of greater trochanter of femur

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23
Q

piriformis

innervation

A

db from sacral plexus

S1-S2

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24
Q

piriformis

action

A

hip external rotation, abduction, extension

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25
Q

obturator internus

origin

A

inner obturator membrane and bony boundaries

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26
Q

obturator internus

insertion

A

medial surface of greater trochanter on femur

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27
Q

obturator internus and superior gemelli

innervation

A

n. to obturator internus

L5, S1

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28
Q

obturator internus

action

A

hip external rotation, extension, adduction

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29
Q

gemelli (superior and inferior)

origin

A

superior: ischial spine
inferior: ischial tuberosity

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30
Q

gemelli

insertion

A

jointly w/obturator internus tendon on medial surface of greater trochanter of femur

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31
Q

gemelli

action

A

hip external rotation, extension, adduction

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32
Q

quadratus femoris

origin

A

lateral border of ischial tuberosity

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33
Q

quadratus femoris

insertion

A

intertrochanteric crest

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34
Q

quadratus femoris and inferior gemelli

innervation

A

N. to quadratus femoris

L5, S1

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35
Q

quadratus femoris

action

A

hip external rotation, adduction

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36
Q

pectineus

origin

A

pecten pubis

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37
Q

pectineus

insertion

A

pectineal line

proximal linea aspera

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38
Q

pectineus

innervation

A

femoral n.
obturator n.
L2, L3

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39
Q

pectineus

action

A

hip adduction, external rotation, slight flexion

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40
Q

adductor longus

origin

A

superior pubic ramus

anterior pubic symphysis

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41
Q

adductor longus

insertion

A

middle 1/3 of linea aspera

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42
Q

adductor longus

innervation

A

obturator n.

L2-L4

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43
Q

adductor longus

action

A

hip adduction
flexion- up to 70 degrees
extension- past 80 degrees of flexion

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44
Q

adductor brevis

origin

A

inferior pubic ramus

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45
Q

adductor brevis

insertion

A

superior 1/3 of linea aspera

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46
Q

adductor brevis

innervation

A

obturator n.

L2, L3

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47
Q

adductor brevis

action

A

hip adduction
flexion- up to 70 degrees
extension- past 80 degrees of flexion

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48
Q

gracilis

origin

A

inferior pubic ramus, below pubic symphysis

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49
Q

gracilis

insertion

A

pes anserinus- medial to tibial tuberosity

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50
Q

gracilis

innervation

A

obturator n.

L2, L3

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51
Q

gracilis

action

A

hip adduction, flexion

knee flexion, internal rotation

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52
Q

obturator externus

origin

A

outer obturator membrane and bony boundaries

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53
Q

obturator externus

insertion

A

trochanteric fossa

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54
Q

obturator externus

innervation

A

obturator n.

L3, L4

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55
Q

obturator externus

action

A

hip adduction, external rotation

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56
Q

adductor magnus

origin

A

inferior pubic ramus
ischial ramus
ischial tuberosity

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57
Q

adductor magnus

insertion

A

deep: medial lip of linea aspera
superficial: adductor tubercle

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58
Q

adductor magnus

innervation

A

deep: obturator n.
L2-L4

superficial: tibial n.
L4

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59
Q

adductor magnus

action

A

hip adduction, extension, slight flexion

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60
Q

sartorius

origin

A

ASIS

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61
Q

sartorius

insertion

A

pes anserinus- medial to tibial tuberosity

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62
Q

sartorius

innervation

A

femoral n.

L2, L3

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63
Q

sartorius

action

A

hip flexion, abduction, external rotation

knee flexion. internal rotation

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64
Q

rectus femoris

origin

A

AIIS

acetabular roof of hip joint

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65
Q

ALL quadriceps femoris muscles
insertion

(rectus femoris, vastus: lateralis, medialis, intermedius)

A

tibial tuberosity via patellar ligament

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66
Q

ALL quadriceps femoris muscles
innervation

(rectus femoris, vastus: medialis, lateralis, intermedius)

A

femoral n.

L2-L4

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67
Q

rectus femoris

action

A

hip flexion

knee extension

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68
Q

ALL vastus muscles
action

(vastus: medialis, intermedius, lateralis)

A

knee extension

69
Q

vastus medialis

origin

A

medial lip of linea aspera

distal intertrochanteric line

70
Q

vastus lateralis

origin

A

lateral lip of linea aspera

lateral surface of greater trochanter

71
Q

vastus intermedius

origin

A

anterior side of femoral shaft

72
Q

biceps femoris

origin

A

long head: ischial tuberosity

short head: lateral lip of linea aspera

73
Q

biceps femoris

insertion

A

head of fibula

74
Q

biceps femoris

innervation

A

long: tibial n.
L5-S2

short: common fibular n.
L5-S2

75
Q

biceps femoris

action

A

Long: hip extension.
Knee flexion and external rotation.

Short: knee flexion, external rotation

76
Q

semimembranosus

origin

A

ischial tuberosity

77
Q

semimembranosus

insertion

A

posterior surface medial tibial condyle
oblique popliteal ligament
popliteus fascia

78
Q

semimembranosus and semitendinosus

innervation

A

tibial n.

L5-S2

79
Q

semimembranosus and semitendinosus

action

A

hip extension

knee flexion and internal rotation

80
Q

semitendinosus

origin

A

ischial tuberosity

sacrotuberous ligament

81
Q

semitendinosus

insertion

A

pes anserinus- medial to tibial tuberosity

82
Q

fibularis longus

origin

A

fibular head and proximal 2/3 of lateral surface

83
Q

fibularis longus

insertion

A 
medial cuneiform (plantar side)
1st mc base
84
Q

fibularis longus and fibularis brevis

innervation

A

superficial fibular n.

L5, S1

85
Q

fibularis longus

action

A

Talocrural joint: plantar flexion,
Subtalar joint: eversion,
Supports transverse arch of foot

86
Q

fibularis brevis

origin

A

distal 1/2 of lateral surface of fibula

intermuscular septa

87
Q

fibularis brevis

insertion

A

tuberosity of 5th mt base

88
Q

fibularis brevis

action

A

Talocrural joint: plantar flexion,

Subtalar joint: eversion

89
Q

gastrocnemius

origin

A

medial and lateral epicondyles of femur

90
Q

gastrocnemius, soleus, plantaris

insertion

A

calcaneal tuberosity

91
Q

gastrocnemius, soleus, plantaris

innervation

A

tibial n.

S1, S2

92
Q

gastrocnemius, soleus

action

A

talocrural joint: plantar flexion

knee joint flexion

93
Q

soleus

origin

A

head and neck of posterior surface of femur

soleal line of tibia

94
Q

plantaris

origin

A

lateral epicondyle of femur

95
Q

plantaris

action

A

negligible;

may prevent compression of posterior leg muscles during knee flexion

96
Q

popliteus

origin

A

lateral femoral condyle

posterior horn of lateral meniscus

97
Q

popliteus

insertion

A

posterior tibial surface

98
Q

popliteus

innervation

A

tibial n.

L4-S1

99
Q

popliteus

action

A

knee joint: flexion, internal rotation

100
Q

tibialis anterior

origin

A

upper 2/3 of lateral surface of tibia
interosseous membrane
highest part of superficial crural fascia

101
Q

tibialis anterior

insertion

A

medial and plantar surface of medial cuneiform

first mt medial base

102
Q

tibialis anterior

innervation

A

deep fibular n.

L4, L5

103
Q

tibialis anterior

action

A

talocrural joint: dorsiflexion

subtalar joint: inversion

104
Q

extensor hallucis longus

origin

A

Middle 1/3 of medial surface of fibula,

Interosseous membrane

105
Q

extensor hallucis longus

insertion

A

dorsal aponeurosis

base of distal phalanx of 1st toe

106
Q

extensor hallucis longus, extensor digitorum longus, fibularis tertius, tibialis anterior
innervation

A

deep fibular n.

L4, L5

107
Q

extensor hallucis longus

action

A

talocrural joint: dorsiflexion
subtalar joint: eversion and inversion
Extends MTP and IP joints of big toe

108
Q

extensor digitorum longus

origin

A

Head and medial surface of fibula,
Lateral condyle of tibia,
Interosseous membrane

109
Q

extensor digitorum longus

insertion

A

Dorsal aponeuroses at base of distal phalanges of 2nd to 5th toes

110
Q

extensor digitorum longus

action

A

Dorsiflexion of talocrural joint,
eversion at subtalar joint,
Extends MTP and IP joints of 2nd to 5th toes

111
Q

fibularis tertius

origin

A

anterior border of distal fibula

112
Q

fibularis tertius

insertion

A

5th mt base

113
Q

fibularis tertius

action

A

talocrural joint: dorsiflexion

subtalar joint: eversion

114
Q

tibialis posterior

origin

A

interosseous membrane

adjacent borders of tibia and fibula

115
Q

tibialis posterior

insertion

A

navicular tuberosity
all cuneiforms,
base of 2nd to 4th mt

116
Q

tibialis posterior

innervation

A

tibial n.

L4, L5

117
Q

tibialis posterior

action

A

tc joint: plantar flexion
st joint: inversion
supports longitudinal and transverse arches

118
Q

flexor digitorum longus

origin

A

middle 1/3 of posterior surface of tibia

119
Q

flexor digitorum longus

insertion

A

bases of 2nd to 5th phalanges

120
Q

flexor digitorum longus and flexor hallucis longus

innervation

A

tibial n.

L5- S2

121
Q

flexor digitorum longus

action

A

tc joint: plantar flexion

st joint: inversion

122
Q

flexor hallucis longus

origin

A

distal 2/3 of posterior surface of fibula

adjacent interosseous membrane

123
Q

flexor hallucis longus

insertion

A

base of 1st distal phalanx

124
Q

flexor hallucis longus

action

A

tc joint: plantar flexion
st j: inversion
MTP and IP joints of 1st toe: plantar flexion
supports medial longitudinal arch

125
Q

extensor digitorum brevis and extensor hallucis brevis

origin

A

dorsal surface of calcaneus

126
Q

extensor digitorum brevis

insertion

A

2nd to 4th toes

dorsal aponeuroses and bases of middle phalanges

127
Q

extensor digitorum brevis and extensor hallucis brevis

innervation

A

deep fibular n.

L5, S1

128
Q

extensor digitorum brevis

action

A

extension of MTP and PIP joints of 2nd to 4th toes

129
Q

extensor hallucis brevis

insertion

A

dorsal aponeurosis and pp of 1st toe

130
Q

extensor hallucis brevis

action

A

MTP joint extension of 1st toe

131
Q

abductor hallucis

origin

A

medial process of calcaneal tuberosity

132
Q

abductor hallucis

insertion

A

base of pp of 1st toe via medial sesamoid

133
Q

abductor hallucis

innervation

A

medial plantar n.

S1, S2

134
Q

abductor hallucis

action

A

1st MTP joint: flexion, abduction

supports longitudinal arch

135
Q

flexor digitorum brevis and abductor digiti minimi

origin

A

medial tubercle of calcaneal tuberosity

plantar aponeurosis

136
Q

flexor digitorum brevis

insertion

A

sides of middle phalanges of 2nd to 5th toes

137
Q

flexor digitorum brevis

innervation

A

medial plantar n.

S1, S2

138
Q

flexor digitorum brevis

action

A

flexes MTP and PIP joints of 2nd to 5th toes

supports longitudinal arch

139
Q

abductor digiti minimi

insertion

A

base of pp of 5th toe

at tuberosity of 5th mt

140
Q

abductor digiti minimi

innervation

A

lateral plantar n.

S1-S3

141
Q

abductor digiti minimi

action

A

flexes MTP joint and does abduction of 5th toe

supports longitudinal arch

142
Q

qudratus plantae

origin

A

medial and plantar borders of calcaneal tuberosity

143
Q

qudratus plantae

insertion

A

flexor digitorum longus tendon (lateral border)

144
Q

quadratus plantae

innervation

A

lateral plantar n.

S1-S3

145
Q

quadratus plantae

action

A

redirects and augments the pull of flexor digitorum longus

146
Q

lumbricals

origin

A

medial border of flexor digitorum longus tendon

147
Q

lumbricals

insertion

A

dorsal aponeuroses of 2nd to 5th toes

148
Q

lumbricals

innervation

A

1st: medial plantar n.
S2, S3
2nd to 4th: lateral plantar n.
S2, S3

149
Q

lumbricals

action

A

2nd to 5th toes: Flexes MTP and extends IP joints

adducts toward big toe

150
Q

flexor hallucis brevis

origin

A

cuboid
lateral cuneiforms
plantar calcaneocuboid lig.

151
Q

flexor hallucis brevis

insertion

A

base of pp of 1st toe

152
Q

flexor hallucis brevis

innervation

A

medial and lateral plantar nn.

S1, S2

153
Q

flexor hallucis brevis

action

A

flexes first MTP joint

supports longitudinal arch

154
Q

adductor hallucis

origin

A

Oblique: 2nd to 4th mt bases
Transverse: MTPs of 3rd to 5th toes, deep transverse mt lig.

155
Q

adductor hallucis

insertion

A

base of 1st pp

156
Q

adductor hallucis

innervation

A

lateral plantar n., deep branch

S2, S3

157
Q

adductor hallucis

action

A

Flexes first MTP joint, adducts big toe,
Oblique: supports longitudinal arch,
Transverse: supports transverse arch

158
Q

flexor digiti minimi brevis

origin

A

5th mt base

long plantar lig.

159
Q

flexor digiti minimi brevis

insertion

A

5th toe base of pp

160
Q

flexor digiti minimi brevis

innervation

A

lateral plantar n., superficial branch

S2, S3

161
Q

flexor digiti minimi brevis

action

A

flexes MTP joint of little toe

162
Q

plantar interossei

origin

A

medial borders of 3rd to 5th mt

163
Q

plantar interossei

insertion

A

medial base of pp of 3rd to 5th toes

164
Q

plantar interossei and dorsal interossei

innervation

A

lateral plantar n.

S2, S3

165
Q

plantar interossei

action

A

3rd to 5th toes: flexes MTP and extends IP joints,

adducts toward 2nd toe

166
Q

dorsal interossei

origin

A

1st to 5th mt (by 2 heads on opposing sides)

167
Q

dorsal interossei

insertion

A

1st: 2nd pp medial base
2nd to 4th: 2nd to 4th lateral base pp,
2nd to 4th dorsal aponeuroses of toes

168
Q

dorsal interossei

action

A

2nd to 4th toes: flexes MTP and extends IP joints,

adducts from 2nd toe

Gross Exam 4 (2 decks)

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