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General Anatomy (2nd year) > Muscles of upper leg > Flashcards

Muscles of upper leg Flashcards

1
Q

Psoas Major Origin

A

anterior aspect of TP’s bodies & IVDs of T12-L5

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2
Q

Psoas Major Insertion

A

lesser trochanter of femur, receives fibres from illiacus

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3
Q

Psoas Major Action

A

hip flexion, flexion of trunk & pelvis w/bilateral contraction

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4
Q

Psoas Major Nerve

A

Femoral Nerve L1-L4

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5
Q

Iliacus Origin

A

superior 2/3 of illiac fossa, inner lip of iliac crest, iliolumbar ligament, sacroiliac ligaments, upper anterior surface of sacrum

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6
Q

Iliacus Insertion

A

common tendon w/psoas major, line below lesser trochanter

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7
Q

Iliacus Action

A

hip flexion, flexion of trunk & pelvis w/bilateral contraction

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8
Q

Iliacus Nerve

A

Femoral Nerve L1-L4

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9
Q

Psoas Minor Origin

A

sides of bodies of T12 & L1, discs between them

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10
Q

Psoas Minor Insertion

A

iliopubic eminence, arcuate line of ilium

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11
Q

Psoas Minor Action

A

flexion of trunk

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12
Q

Psoas Minor Nerve

A

Lumbar Plexus (L1-L2)

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13
Q

Tensor Fascia Latae Origin

A

anterior 2/3 of lateral lip of iliac crest, lateral surface of ASIS, border of notch below ASIS

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14
Q

Tensor Fascia Latae Insertion

A

iliotibial band, attaches to lateral condyle of tibia

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15
Q

Tensor Fascia Latae Action

A

abduction of hip, medial rotation of hip, flexion of hip, extension of knee

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16
Q

Tensor Fascia Latae Nerve

A

Superior Gluteal Nerve (L4, L5 & S1)

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17
Q

Gluteus Maximus Origin

A

posterior gluteal line, dorsal surface of lower part of sacrum, side of coccyx, aponeurosis of erecot spinae, sacrotuberous ligament

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18
Q

Gluteus Maximus Insertion

A

Gluteal tuberosity (deep fibres), iliotibial band (superficial fibres)

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19
Q

Gluteus Maximus Action

A

extension of hip, lateral rotation of hip, lower fibres assist in adduction of hip, upper fibres do abduction of hip, rotates pelvis posterior, steadies fumur on tibia

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20
Q

Gluteus Maximus Nerve

A

Inferior Gluteal Nerve (L5, S1-S2)

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21
Q

Gluteus Medius Origin

A

between posterior & anterior gluteal lines, iliac crest above, gluteal aponeurosis

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22
Q

Gluteus Medius Insertion

A

flattened tendon into oblique ridge on lateral surface of greater trochanter

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23
Q

Gluteus Medius Action

A

abduction of hip, medial rotation of hip (ant. Fibres), lateral rotation of hip (post fibres), prevents pelvis from dropping

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24
Q

Gluteus Medius Nerve

A

Superior Gluteal Nerve (L4, L5 & S1)

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25
Q

Gluteus Minimus Origin

A

between anterior & inferior gluteal lines

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26
Q

Gluteus Minimus Insertion

A

ridge on lateral & anterior surface of GT, hip joint capsule

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27
Q

Gluteus Minimus Action

A

abducts hip, medially rotates hip, may assist flexion of hip

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28
Q

Gluteus Minimus Nerve

A

Superior Gluteal Nerve (L4, L5 & S1)

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29
Q

Biceps Femoris Long Head Origin

A

inferior medial impression on the superior aspect of ischial tuberosity, lower part of sacrotuberous ligament

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30
Q

Biceps Femoris Short Head Origin

A

lateral lip of linea aspera, lateral supracondylar line, lateral intermuscular

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31
Q

Biceps Femoris Insertion

A

combines into a single tendon & inserts in lateral side of head of fibula, lateral condyle of the tibia

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32
Q

Biceps Femoris Action

A

flexion of knee, extension of hip, assists in lateral rotation of hip, lateral rotation of tibia when knee is semi-flexed

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33
Q

Biceps Femoris Nerve

A

Peroneal Branch of the Sciatic Nerve (L5 S1-2)

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34
Q

Semitendinosus Origin

A

shares tendon with long head of biceps femoris, forms long rounded tendon 1/2 way down thigh, lies on surface of semimebranosus, tendon curves around medial condyle of postero-medial tibia, passes over medial collateral ligament

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35
Q

Semitendinosus Insertion

A

Superior portion of medial surface of tibia below tibial tubercle

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36
Q

Semitendinosus Action

A

Flexion of knee, extension of hip, medial rotation of tibia when knee is semi-flexed

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37
Q

Semitendinosus Nerve

A

Tibial Branch of Sciatic Nerve (L4-L5 S1-S2)

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38
Q

Semimebranosus Origin

A

lateral aspect of ischial tuberosity, passes deep to semitendiosus & long head of biceps femoris

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39
Q

Semimebranosus Insertion

A

groove for semimembranosus on tibia, located on posterior aspect of medial tibial condyle, other slips to medial tibial margin behind medial collateral ligament

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40
Q

Semimebranosus Action

A

Flexion of knee, extension of hip, medial rotation of tibia when knee is semi-flexed

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41
Q

Semimebranosus Nerve

A

Tibial Branch of Sciatic Nerve (L4-L5 S1-S2)

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42
Q

Gracilis Origin

A

body of pubis (lower 1/2), inferior pubic ramus, fibres run downward & around medial condyle

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43
Q

Gracilis Insertion

A

upper medial surface of tibia below tibial tubercle, part of pes anserine group, pes anserine bursa

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44
Q

Gracilis Action

A

flexion of knee, medial rotation of knee, adduction of hip (only adductor to cross the knee)

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45
Q

Gracilis Nerve

A

Obturator Nerve (L2-L4)

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46
Q

Pectineus Origin

A

pectineal line of the pubis, fibres run inferior/lateral/posterior

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47
Q

Pectineus Insertion

A

pectineal line of the femur, functions as part of the adductor group & as part of hip flexor group

48
Q

Pectineus Action

A

Adduction of hip, flexion of hip

49
Q

Pectineus Nerve

A

Femoral Nerve (L2-L4), Obturator Nerve (L2-L4)

50
Q

Adductor Longus Origin

A

front of body of the pubis

51
Q

Adductor Longus Insertion

A

medial lip of linea aspera

52
Q

Adductor Longus Action

A

adduction of hip, may assist in flexion of hip

53
Q

Adductor Longus Nerve

A

Obturator Nerve (L2-L4)

54
Q

Adductor Brevis Origin

A

anterior aspect of body of pubis, inferior ramus of pubis, fibres run downward & lateral, also runs posterior

55
Q

Adductor Brevis Insertion

A

spiral line, upper hald of medial lip or linea aspera

56
Q

Adductor Brevis Action

A

adduction of hip

57
Q

Adductor Brevis Nerve

A

Obturator Nerve (L2-L4)

58
Q

Adductor Magnus Anterior Fibres Origin

A

inferior ramus of pubis

59
Q

Adductor Magnus Middle Fibres Origin

A

ramus of ischium

60
Q

Adductor Magnus Posterior Fibres Origin

A

inferolateral aspect of ischial tuberosity

61
Q

Adductor Magnus Insertion

A

medial margin of gluteal tuberosity, linea aspera & medial supracondylar line, medial supracondylar line, adductor tubercle

62
Q

Adductor Magnus Action

A

adduction of hip, extension of hip

63
Q

Adductor Magnus Nerve

A

Obturator Nerve (L2-L4), Tibial branch of Sciatic Nerve (L4-L5 S1)

64
Q

Femoral Triangle Superior

A

inguinal ligament

65
Q

Femoral Triangle Medial

A

lateral border of adductor longus

66
Q

Femoral Triangle Lateral

A

medial border of sartorius

67
Q

Femoral Triangle Inferior

A

converging of adductor longus & sartoruis

68
Q

Femoral Triangle Contents

A

femoral nerve, femoral artery, femoral vein, obturator nerve

69
Q

Femoral Triangle Floor Lateral

A

iliacus & psoas major

70
Q

Femoral Triangle Floor Medial

A

pectineus & adductor longus

71
Q

Piriformis Origin

A

anterior surface of sacrum, anterior capsule of SI joint, pelvic surface of sacrotuberous, passes through sciatic foramen

72
Q

Piriformis Insertion

A

superior border of greater trochanter

73
Q

Piriformis Action

A

lateral rotation, abduction when hips is in flexion

74
Q

Piriformis Nerve

A

Sacral Plexus (L5, S1-S2)

75
Q

Obturator Internus Origin

A

pelvic surface of obturator membrane, bone around obturator foramen

76
Q

Obturator Internus Insertion

A

antero-superior to trochanteric fossa, medial surface of greater trochanter

77
Q

Obturator Internus Action

A

lateral rotation, abduction when hips is in flexion

78
Q

Obturator Internus Nerve

A

Obturator Internus (L5, S1-S2)

79
Q

Obturator Externus Origin

A

obturator membrane & bone around it, rami of pubis & ischium

80
Q

Obturator Externus Insertion

A

trochanteric fossa of femur

81
Q

Obturator Externus Action

A

lateral rotation of hip, stabilizes hip joint

82
Q

Obturator Externus Nerve

A

Posterior branch of Obturator Nerve (L3-L4)

83
Q

Gemellus Superior Origin

A

dorsal surface of spine of ischium

84
Q

Gemellus Superior Insertion

A

blends into tendon of obturator internus, medial surfacce of greater trochanter

85
Q

Gemellus Superior Action

A

lateral rotation, abduction when hips is in flexion

86
Q

Gemellus Superior Nerve

A

Sacral Plexus (L5, S1-S2)

87
Q

Gemellus Inferior Origin

A

Upper part of ischial tuberosity

88
Q

Gemellus Inferior Insertion

A

blends with obturator internus, medial surface of greater trochanter

89
Q

Gemellus Inferior Action

A

lateral rotation, abduction when hips is in flexion

90
Q

Gemellus Inferior Nerve

A

sacral plexus (L4-L5, S1-S2)

91
Q

Quadratus Femoris Origin

A

Upper part of ischial tuberosity

92
Q

Quadratus Femoris Innsertion

A

quadrate tubercle

93
Q

Quadratus Femoris Action

A

lateral rotation of hip

94
Q

Quadratus Femoris Nerve

A

sacral plexus (L4-L5, S1-S2)

95
Q

Sartorius Origin

A

ASIS, superior hald of notch below ASIS, muscle crosses thigh obliquely to medial side

96
Q

Sartorius Insertion

A

superior, medial side of tibia below tibia tubercle

97
Q

Sartorius Action

A

flexion/abduction/lateral rotation of hip, flexion of knee, assists in medial rotation of knee

98
Q

Sartorius Nerve

A

Femoral Nerve (L2-L4), Obturator Nerve (L2-L4)

99
Q

Rectus Femoris Straight Head Origin

A

From ASIS

100
Q

Rectus Femoris Reflected Head Origin

A

groove above the rim of acetabulum

101
Q

Rectus Femoris Insertion

A

Common tendon, proximal border of patella into tibial tuberosity

102
Q

Rectus Femoris Action

A

Extension of the knee

103
Q

Rectus Femoris Nerve

A

Femoral Nerve (L2-L4)

104
Q

Vastus Intermedius Origin

A

anterior & lateral surfaces of proximal 2/3 shaft of femur, distal protion of linea aspera, lateral intermuscular septum

105
Q

Vastus Intermedius Insertion

A

Common tendon, proximal border of patella into tibial tuberosity

106
Q

Vastus Intermedius Action

A

Extension of the knee

107
Q

Vastus Intermedius Nerve

A

Femoral Nerve (L2-L4)

108
Q

Vastus Lateralis Origin

A

proximal part of intertrochanteric line, anterior/inferior border of GT, lateral lip of gluteal tuberosity, proximal 1/2 of lateral lip of linea aspera, lateral intermuscular septum

109
Q

Vastus Lateralis Insertion

A

Common tendon, proximal border of patella into tibial tuberosity

110
Q

Vastus Lateralis Action

A

Extension of the knee

111
Q

Vastus Lateralis Nerve

A

Femoral Nerve (L2-L4)

112
Q

Vastus Medialis Origin

A

distal portion of intertrochanteric line, medial lip of linea aspera, proximal part of medial suprcondylar line, tendons of adductor longus and adductor magnus, medial inermuscular septum

113
Q

Vastus Medialis Insertion

A

Common tendon, proximal border of patella into tibial tuberosity

114
Q

Vastus Medialis Action

A

Extension of the knee

115
Q

Vastus Medialis Nerve

A

Femoral Nerve (L2-L4)

General Anatomy (2nd year) (8 decks)

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