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LE OIAN Flashcards

1
Q

Gluteus Maximus Origin

A
  1. external surface of ilium behind the posterior gluteal line
  2. dorsal surface of sacrum and coccyx
  3. sacrotuberous ligament
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2
Q

Gluteus maximus insertion

A
  1. IT band

2. gluteal tuberosity of the femur

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3
Q

gluteus maximus action

A
  1. extend hip
  2. laterally rotates hip
  3. upper fibers aid slightly to abduct the hip
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4
Q

gluteus maximus innervation

A

nerve: inferior gluteal nerve L5, S1-2

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5
Q

gluteus medius origin

A

outer aspect of ilium (between iliac crest and anterior and posterior gluteal lines)

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6
Q

gluteus medius insertion

A

superior aspect of greater trochanter

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7
Q

gluteus medius action

A

abducts and medially rotates hip

stabilizes pelvis and prevents free limb from sagging during gait

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8
Q

gluteus medius innervation

A

superior gluteal nerve L5, S1

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9
Q

Gluteus minimus origin

A

outer aspect of ilium (between anterior and inferior gluteal lines)

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10
Q

gluteus minimus insertion

A

anterior aspect of greater trochanter

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11
Q

gluteus minimus action

A
  1. medially rotates hip

2. abducts the hip

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12
Q

gluteus minimus innervation

A

superior gluteal nerve L5, S1

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13
Q

Tensor fascia lata origin

A

anterolateral aspect of superior iliac crest

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14
Q

tensor fascia lata insertion

A

onto IT band which the IT tract attaches down at “gerdy’s tubercle” on the tibia

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15
Q

tensor fascia lata action

A
  1. abducts with hip in flexed position
  2. hip flexion
  3. slightly helps with hip medial rotation
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16
Q

Tensor fascia lata innervation

A

Superior gluteal nerve L5, S1

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17
Q

Piriformis origin

A

anterior surface of sacrum

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18
Q

piriformis insertion

A

superior surface of greater trochanter (through greater sciatic foramen)

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19
Q

piriformis action

A
  1. external rotation

2. abduction

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20
Q

piriformis innervation

A

nerve to piriformis S1,2

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21
Q

superior gemellus origin

A

ischial spine

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22
Q

superior gemellus insertion

A

medial aspect superior border of greater trochanter via tendon of obturator internus

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23
Q

superior gemellus action

A

laterally rotates hip

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24
Q

superior gemellus innervation

A

nerve to obturator internus L5, S1-2

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25
Q

obturator internus origin

A

internal surface of obturator foramen and its boney boundaries

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26
Q

obturator internus insertion

A

medial aspect of greater trochanter (through lesser sciatic foramen

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27
Q

obturator internus action

A

laterally rotates hip

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28
Q

obturator internus innervation

A

nerve to obturator internus L5, S1-2

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29
Q

Inferior gemellus origin

A

ischial tuberosity

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30
Q

inferior gemellus insertion

A

medial aspect of superior borer of greater trochanter via tendon of obturator internus

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31
Q

inferior gemellus action

A

laterally rotates hip

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32
Q

inferior gemellus innervation

A

nerve to quadratus femoris L5, S1

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33
Q

obturator externus origin

A
  1. pubis and ischium near obturator foramen

2. external surface of obturator membrane

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34
Q

obturator externus insertion

A

trochanteric fossa of femur

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35
Q

obturator externus action

A

laterally rotates hip

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36
Q

obturator externus innervation

A

obturator L3,4

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37
Q

quadratus femoris origin

A

ischial tuberosity

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38
Q

quadratis femoris insertion

A

quadrate tubercle

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39
Q

quadratus femoris action

A
  1. laterally rotates hip

2. adducts hip

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40
Q

quadratus femoris innervation

A

nerve to quadratus femoris L5,S1

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41
Q

semitendinosus origin

A

ischial tuberosity

42
Q

semitendinosus insertion

A
  1. anteromedial aspect of the tibial shaft

2. contributes to pes anserine

43
Q

semitendinosus action

A
  1. extend hip
  2. flexes knee
  3. medially rotates the tibia (open chain)
44
Q

semitendinosus innervation

A

tibial L5, S1-2

45
Q

semimembranosus origin

A

ischial tuberosity

46
Q

semimembranosus insertion

A
  1. posterior medial aspect of the medial tibial condyle
47
Q

semimembranosus action

A
  1. extend hip
  2. flexes knee
  3. medially rotates the tibia (open chain)
48
Q

semimembranosus innervation

A

Tibial L5, S1-2

49
Q

biceps femoris origin

A

long head: ischial tuberosity and sacrotuberous ligament

short head: lateral lip of the linea aspera

50
Q

biceps femoris insertion

A

head of fibula

51
Q

biceps femoris action

A
  1. flexes knee
  2. extend hip (long head)
  3. laterally rotates tibia (open chain)
52
Q

biceps femoris innervation

A

long head: tibial portion of sciatic L5-S2

short head: common peroneal of sciatic L5-S2

53
Q

iliacus origin

A

superior 2/3 of iliac fossa, iliac crest & ala of sacrum

54
Q

iliacus insertion

A

lesser trochanter of the femur

55
Q

iliacus action

A

flexes hip

externally rotates the femur (hip)

56
Q

iliacus innervation

A

Femoral (L2,3)

57
Q

psoas major origin

A

bodies & transverse processes of T12-L5 & associating intervertebral discs

58
Q

psoas major insertion

A

lesser trochanter of the femur

59
Q

psoas major action

A
  1. flexes hip

2. externally rotates the femur (hip)

60
Q

psoas major innervation

A

ventral rami L1-3

61
Q

sartorius origin

A

ASIS

anterior superior iliac spine

62
Q

sartorius insertion

A
  1. upper medial aspect of proximal tibia

2. contributes to pes anserinus

63
Q

sartorius action

A
  1. Hip flexion, abduction, external rotation

2. knee flexion, internal rotation

64
Q

sartorius innervation

A

Femoral L2,3

65
Q

rectus femoris origin

A

anterior head: AIIs anterior inferior iliac spine

posterior head: just above the acetabulum

66
Q

rectus femoris insertion

A

tibial tuberosity

67
Q

rectus femoris action

A

extends knee, flexes hip

68
Q

rectus femoris innervation

A

Femoral L2-4

69
Q

vastus lateralis origin

A
  1. greater trochanter

2. lateral lip of linea aspera

70
Q

vastus lateralis insertion

A

tibial tuberosity

71
Q

vastus lateralis action

A

extend knee

72
Q

vastus lateralis innervation

A

Femoral L2-4

73
Q

vastus medialis origin

A
  1. intertrochanteric line of femur

2. medial aspect of linea aspera

74
Q

vastus medialis insertion

A

tibial tuberosity

75
Q

vastus medialis action

A

extends knee

76
Q

vastus medialis innervation

A

Femoral L2-4

77
Q

vastus intermedius origin

A

proximal 2/3 anterior lateral aspect of the femoral shaft

78
Q

vastus intermedius insertion

A

tibial tuberosity

79
Q

vastus intermedius action

A

extends knee

80
Q

vastus intermedius innervation

A

Femoral L2-4

81
Q

gracilis origin

A

inferior pubic ramus

82
Q

gracilis insertion

A
  1. medial surface of proximal tibia, inferior to tibial condyle
  2. contributes to pes anserine
83
Q

gracilis action

A
  1. adducts hip
  2. flexes knee
  3. medially rotates tibia
84
Q

gracilis innervation

A

Obturator

L2, 3

85
Q

adductor longus origin

A

body of pubis

86
Q

adductor longus insertion

A

medial lip of linea aspera on middle half of femur

87
Q

adductor longus action

A
  1. hip adduction and flexion

2. external rotation and extension of femur

88
Q

adductor longus innervation

A

Obturator (L2-4)

89
Q

adductor brevis origin

A

inferior pubic ramus

90
Q

adductor brevis insertion

A

superior 1/3 of medial lip of linea aspera

91
Q

adductor brevis action

A
  1. hip adduction and flexion

2. external rotation and extension of femur

92
Q

adductor brevis innervation

A

Obturator (L2-4)

93
Q

adductor magnus origin

A
  1. anterior fibers: inferior pubic ramus
    posterior fibers: ischial tuberosity
    oblique fibers: ischial ramus
94
Q

adductor magnus insertion

A
  1. medial lip of linea aspera

2. adductor tubercle

95
Q

adductor magnus action

A
  1. adducts hip
  2. posterior fibers extend and laterally rotate the hip
  3. anterior fibers slightly flex hip
96
Q

adductor magnus innervation

A

anterior fibers: obturator (L2-4)

posterior fibers: tibial (L4)

97
Q

pectineus origin

A

pectineal line of pubis

98
Q

pectineus insertion

A

pectineal line of femur

99
Q

pectineus action

A
  1. hip adduction
  2. flexes hip
  3. medially rotates hip
100
Q

pectineus innervation

A

Femoral (L2,3) and accessory obturator

Musculoskeletal Anatomy (7 decks)

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