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

Muscles of upper leg Flashcards

(115 cards)

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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
Gluteus Minimus Origin
between anterior & inferior gluteal lines
26
Gluteus Minimus Insertion
ridge on lateral & anterior surface of GT, hip joint capsule
27
Gluteus Minimus Action
abducts hip, medially rotates hip, may assist flexion of hip
28
Gluteus Minimus Nerve
Superior Gluteal Nerve (L4, L5 & S1)
29
Biceps Femoris Long Head Origin
inferior medial impression on the superior aspect of ischial tuberosity, lower part of sacrotuberous ligament
30
Biceps Femoris Short Head Origin
lateral lip of linea aspera, lateral supracondylar line, lateral intermuscular
31
Biceps Femoris Insertion
combines into a single tendon & inserts in lateral side of head of fibula, lateral condyle of the tibia
32
Biceps Femoris Action
flexion of knee, extension of hip, assists in lateral rotation of hip, lateral rotation of tibia when knee is semi-flexed
33
Biceps Femoris Nerve
Peroneal Branch of the Sciatic Nerve (L5 S1-2)
34
Semitendinosus Origin
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
35
Semitendinosus Insertion
Superior portion of medial surface of tibia below tibial tubercle
36
Semitendinosus Action
Flexion of knee, extension of hip, medial rotation of tibia when knee is semi-flexed
37
Semitendinosus Nerve
Tibial Branch of Sciatic Nerve (L4-L5 S1-S2)
38
Semimebranosus Origin
lateral aspect of ischial tuberosity, passes deep to semitendiosus & long head of biceps femoris
39
Semimebranosus Insertion
groove for semimembranosus on tibia, located on posterior aspect of medial tibial condyle, other slips to medial tibial margin behind medial collateral ligament
40
Semimebranosus Action
Flexion of knee, extension of hip, medial rotation of tibia when knee is semi-flexed
41
Semimebranosus Nerve
Tibial Branch of Sciatic Nerve (L4-L5 S1-S2)
42
Gracilis Origin
body of pubis (lower 1/2), inferior pubic ramus, fibres run downward & around medial condyle
43
Gracilis Insertion
upper medial surface of tibia below tibial tubercle, part of pes anserine group, pes anserine bursa
44
Gracilis Action
flexion of knee, medial rotation of knee, adduction of hip (only adductor to cross the knee)
45
Gracilis Nerve
Obturator Nerve (L2-L4)
46
Pectineus Origin
pectineal line of the pubis, fibres run inferior/lateral/posterior
47
Pectineus Insertion
pectineal line of the femur, functions as part of the adductor group & as part of hip flexor group
48
Pectineus Action
Adduction of hip, flexion of hip
49
Pectineus Nerve
Femoral Nerve (L2-L4), Obturator Nerve (L2-L4)
50
Adductor Longus Origin
front of body of the pubis
51
Adductor Longus Insertion
medial lip of linea aspera
52
Adductor Longus Action
adduction of hip, may assist in flexion of hip
53
Adductor Longus Nerve
Obturator Nerve (L2-L4)
54
Adductor Brevis Origin
anterior aspect of body of pubis, inferior ramus of pubis, fibres run downward & lateral, also runs posterior
55
Adductor Brevis Insertion
spiral line, upper hald of medial lip or linea aspera
56
Adductor Brevis Action
adduction of hip
57
Adductor Brevis Nerve
Obturator Nerve (L2-L4)
58
Adductor Magnus Anterior Fibres Origin
inferior ramus of pubis
59
Adductor Magnus Middle Fibres Origin
ramus of ischium
60
Adductor Magnus Posterior Fibres Origin
inferolateral aspect of ischial tuberosity
61
Adductor Magnus Insertion
medial margin of gluteal tuberosity, linea aspera & medial supracondylar line, medial supracondylar line, adductor tubercle
62
Adductor Magnus Action
adduction of hip, extension of hip
63
Adductor Magnus Nerve
Obturator Nerve (L2-L4), Tibial branch of Sciatic Nerve (L4-L5 S1)
64
Femoral Triangle Superior
inguinal ligament
65
Femoral Triangle Medial
lateral border of adductor longus
66
Femoral Triangle Lateral
medial border of sartorius
67
Femoral Triangle Inferior
converging of adductor longus & sartoruis
68
Femoral Triangle Contents
femoral nerve, femoral artery, femoral vein, obturator nerve
69
Femoral Triangle Floor Lateral
iliacus & psoas major
70
Femoral Triangle Floor Medial
pectineus & adductor longus
71
Piriformis Origin
anterior surface of sacrum, anterior capsule of SI joint, pelvic surface of sacrotuberous, passes through sciatic foramen
72
Piriformis Insertion
superior border of greater trochanter
73
Piriformis Action
lateral rotation, abduction when hips is in flexion
74
Piriformis Nerve
Sacral Plexus (L5, S1-S2)
75
Obturator Internus Origin
pelvic surface of obturator membrane, bone around obturator foramen
76
Obturator Internus Insertion
antero-superior to trochanteric fossa, medial surface of greater trochanter
77
Obturator Internus Action
lateral rotation, abduction when hips is in flexion
78
Obturator Internus Nerve
Obturator Internus (L5, S1-S2)
79
Obturator Externus Origin
obturator membrane & bone around it, rami of pubis & ischium
80
Obturator Externus Insertion
trochanteric fossa of femur
81
Obturator Externus Action
lateral rotation of hip, stabilizes hip joint
82
Obturator Externus Nerve
Posterior branch of Obturator Nerve (L3-L4)
83
Gemellus Superior Origin
dorsal surface of spine of ischium
84
Gemellus Superior Insertion
blends into tendon of obturator internus, medial surfacce of greater trochanter
85
Gemellus Superior Action
lateral rotation, abduction when hips is in flexion
86
Gemellus Superior Nerve
Sacral Plexus (L5, S1-S2)
87
Gemellus Inferior Origin
Upper part of ischial tuberosity
88
Gemellus Inferior Insertion
blends with obturator internus, medial surface of greater trochanter
89
Gemellus Inferior Action
lateral rotation, abduction when hips is in flexion
90
Gemellus Inferior Nerve
sacral plexus (L4-L5, S1-S2)
91
Quadratus Femoris Origin
Upper part of ischial tuberosity
92
Quadratus Femoris Innsertion
quadrate tubercle
93
Quadratus Femoris Action
lateral rotation of hip
94
Quadratus Femoris Nerve
sacral plexus (L4-L5, S1-S2)
95
Sartorius Origin
ASIS, superior hald of notch below ASIS, muscle crosses thigh obliquely to medial side
96
Sartorius Insertion
superior, medial side of tibia below tibia tubercle
97
Sartorius Action
flexion/abduction/lateral rotation of hip, flexion of knee, assists in medial rotation of knee
98
Sartorius Nerve
Femoral Nerve (L2-L4), Obturator Nerve (L2-L4)
99
Rectus Femoris Straight Head Origin
From ASIS
100
Rectus Femoris Reflected Head Origin
groove above the rim of acetabulum
101
Rectus Femoris Insertion
Common tendon, proximal border of patella into tibial tuberosity
102
Rectus Femoris Action
Extension of the knee
103
Rectus Femoris Nerve
Femoral Nerve (L2-L4)
104
Vastus Intermedius Origin
anterior & lateral surfaces of proximal 2/3 shaft of femur, distal protion of linea aspera, lateral intermuscular septum
105
Vastus Intermedius Insertion
Common tendon, proximal border of patella into tibial tuberosity
106
Vastus Intermedius Action
Extension of the knee
107
Vastus Intermedius Nerve
Femoral Nerve (L2-L4)
108
Vastus Lateralis Origin
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
Vastus Lateralis Insertion
Common tendon, proximal border of patella into tibial tuberosity
110
Vastus Lateralis Action
Extension of the knee
111
Vastus Lateralis Nerve
Femoral Nerve (L2-L4)
112
Vastus Medialis Origin
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
Vastus Medialis Insertion
Common tendon, proximal border of patella into tibial tuberosity
114
Vastus Medialis Action
Extension of the knee
115
Vastus Medialis Nerve
Femoral Nerve (L2-L4)

General Anatomy (2nd year) (8 decks)

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