Lower Extremity OIA Flashcards
(110 cards)
1
Q
Psoas Major Origin
A
Anterior surfaces of TPs L1-L5 and both sides of bodies T12-S1
2
Q
Psoas Major Insertion
A
Lesser Trochanter
3
Q
Psoas Major Action
A
Hip FLX, lumbar FLX
4
Q
Iliacus Origin
A
superior 2/3rds iliac fossa, ala of sacrum, and anterior sacroiliac legs
5
Q
Iliacus Insertion
A
lesser trochanter and femur shaft just distal to lesser trochanter, tendon fused with psoas major tendon
6
Q
Iliacus Action
A
Hip FLX and trunk FLX, stabilizes the hip
7
Q
Gluteus Maximus Origin
A
Ilium posterior gluteal, iliac crest, lateral surface of ilium, sacrum, coccyx, sacrotuberous ligament, and thoracolumbar fascia
8
Q
Gluteus Maximus Insertion
A
Iliotibial tract and gluteal tuberosity of femur
9
Q
Gluteus Maximus Action
A
Hip EXT, assists in ER, assists in raising trunk from flexed position, powerful ER when hip extended
10
Q
Gluteus Medius Origin
A
anterior iliac crest, lateral surface of ilium btw posterior and anterior gluteal lines
11
Q
Gluteus Medius Insertion
A
greater trochanter of femur
12
Q
Gluteus Medius Action
A
hip ABD and IR
13
Q
Gluteus Minimus Origin
A
lateral ilium btw inferior and anterior gluteal lines
14
Q
Gluteus Minimus Insertion
A
greater trochanter of the femur
15
Q
Gluteus Minimus Action
A
hip ABD & IR, keeps pelvis level when ipsilateral hip is WB
16
Q
TFL Origin
A
anterior parts of iliac crests, just posterior to ASIS
17
Q
TFL Insertion
A
descends vertically downwards to be inserted into the ITB
18
Q
TFL Action
A
hip FLX (acts in concert with Iliopsoas and Rectus Femoris), ABD and IR of the hip
19
Q
ITB Origin
A
tubercle of the iliac crest
20
Q
ITB Insertion
A
lateral condyle of tibia (Gerdy’s Tubercle)
21
Q
Piriformis Origin
A
anterior sacrum
22
Q
Piriformis Insertion
A
greater trochanter
23
Q
Piriformis Action
A
ER, ABD of flexed hip
24
Q
Gemelli Superior Origin
A
Ischial spine
25
Gemelli Superior Insertion
trochanteric fossa
26
Gemelli Superior Action
ER, ABD of flexed hip
27
Gemelli Inferior Origin
ischial tuberosity
28
Gemelli Inferior Insertion
trochanteric fossa
29
Gemelli Inferior Action
ER, ABD of flexed hip
30
Quadratus Femoris Origin
ischial tuberosity
31
Quadratus Femoris Insertion
quadrate tubercle on Intertrochanteric Crest of femur
32
Quadratus Femoris Action
hip ER
33
Obturator Internus Origin
medial margins of obturator foramen
34
Obturator Internus Insertion
trochanteric fossa
35
Obturator Internus Action
hip ER, ABD of flexed hip
36
Obturator Externus Origin
lateral margins of obturator foramen
37
Obturator Externus Insertion
trochanteric fossa
38
Obturator Externus Action
hip ER
39
Sartorius Origin
ASIS
40
Sartorius Insertion
medial tibia near tibial tuberosity
41
Sartorius Action
Hip: ABD, ER, FLX
Knee: FLX
medially rotates the lower leg when knee is flexed
42
Rectus Femoris Origin
AIIS
43
Rectus Femoris, Vastus Intermedius, Vastus Lateralis, Vastus Medialis Insertion
tibial tuberosity via quadriceps tendon, patella, and patellar ligament
44
Rectus Femoris, Vastus Intermedius, Vastus Lateralis, Vastus Medialis Action
EXT of the knee
45
Vastus Intermedius Origin
anterolateral surface of femus
46
Vastus Lateralis Origin
greater trochanter and along lateral lip of linea aspera
47
Vastus Medialis Origin
entire medial lip of linea aspera
48
Biceps Femoris Origin
Long Head: ischial tuberosity
Short Head: linea aspera
49
Biceps Femoris Insertion
head of fibula
50
Biceps Femoris Action
hip: EXT
knee: FLX and ER (of lower leg when knee is flexed)
51
Semimembranosus Origin
ischial tuberosity, passes downward and medially in front of the biceps and semitendiosus
52
Semimembranosus Insertion
by the flat tendon to the semimembranosus groove on the back of the medial condyle of tibia
53
Semimembranosus Action
hip: EXT
knee: FLX (and IR of the lower leg when knee flexed)
54
Semitendinosus Origin
Ischial tuberosity, by tendon common to long head of biceps
55
Semitendinosus Insertion
medial surface of tibia close to the insertion of gracilis (Pes anserinus = SemiT+gracilis+sartorius)
56
Semitendinosus Action
hip: EXT
knee: FLX (and IR of the lower leg when knee flexed)
57
Pectineus Origin
superior ramus of pubis (pectineal line)
58
Pectineus Insertion
pectineal line just inferior to lesser trochanter of femur
59
Pectineus Action
ADD, FLX of hip
60
Adductor Longus Origin
pubis
61
Adductor Longus Insertion
linea aspera
62
Adductor Longus Action
ADD, FLX of hip
63
Adductor Brevis Origin
body of inferior ramus of pubis anteriorly to ADD Magnus
64
Adductor Brevis Insertion
linea aspera, pectineal line
65
Adductor Brevis Action
ADD and FLX of hip
66
Gracilis Origin
inferior ramus of pubic bone, very close to the symphysis pubis, medial to ADD Brevis attachment
67
Gracilis Insertion
medial superior surface of tibia, inferior to medial condyle
68
Gracilis Action
Hip: ADD and FLX of hip
69
Adductor Magnus Origin
Inferior ramus of pubis posterior to ADD Brevis and to ischial tuberosity
70
Adductor Magnus Insertion
Adductor Part: linea aspera and gluteal tuberosity of femur, medial supracondylar line
Hamstring Part: adductor tubercle of femur
71
Adductor Magnus Action
ADD and FLX (adductor part) or ADD EXT (hamstring part)
72
Tibialis Anterior Origin
lateral condyle of tibia, interosseous membrane
73
Tibialis Anterior Insertion
medial cuneiform, base of 1st metatarsal
74
Tibialis Anterior Action
ankle dorsiflexion and inversion, helps to maintain the medial arch of the foot during walking
75
Extensor Digitorum Longus Origin
lateral tibial condyle, fibular shaft, interosseous membrane
76
Extensor Digitorum Longus Insertion
middle and distal phalanges of toes 2-5
77
Extensor Digitorum Longus Action
extends lateral 4 toes, ankle DF
78
Fibularis Tertius Origin
inferior surface of fibula, adjacent anterior surface of interosseous membrane
79
Fibularis Tertius Insertion
dorsal base and shaft of 5th metatarsal
80
Fibularis Tertius Action
ankle DF and helps in eversion
81
Extensor Hallucis Longus Origin
anterior surface of interosseous membrane, middle half of anterior surface of fibula
82
Extensor Hallucis Longus Insertion
dorsal surface of base of distal phalanx of great toe
83
Extensor Hallucis Longus Action
extends MTP and IP joints great toe, assists in ankle DF
84
Fibularis Longus Origin
head of fibula, lateral fibular shaft
85
Fibularis Longus Insertion
medial cuneiform, 1st metatarsal
86
Fibularis Longus Action
ankle eversion and PF
87
Fibularis Brevis Origin
inferior lateral surface of fibula
88
Fibularis Brevis Insertion
tuberosity of the base of the fifth metatarsal
89
Fibularis Brevis Action
Ankle eversion and weak PF
90
Gastrocnemius Origin
Lateral Head: lateral condyle of femur
Medial Head: posterior surface medial femoral condyle
91
Gastrocnemius Insertion
posterior calcaneus via Achilles tendon
92
Gastrocnemius Action
knee flexor and ankle PF (cannot do both at the same time)
93
Soleus Origin
posterior aspect of fibular head, posterior fibula, soleal line on tibia, tibial shaft
94
Soleus Insertion
posterior calcaneus via Achilles tendon
95
Soleus Action
ankle PF
96
Plantaris Origin
lateral supracondylar line of femur
97
Plantaris Insertion
blends with Achilles to insert on posterior calcaneus
98
Plantaris Action
Weak knee flexor and ankle PF
99
Popliteus Origin
lateral femoral condyle
100
Popliteus Insertion
posterior surface of tibia, superior to popliteal line
101
Popliteus Action
flexes knee (weak), medial tibial rotation in OKC position, lateral femur rotation in CKC position, when the knee is extended fully a lateral rotation of the tibia locks the knee joint. In order to unlock it the popliteus acts by rotating tibia medially at the beginning of flexion
102
Tibialis Posterior Origin
posterior interosseous membrane, posterior shaft of fibula, posterior aspect of superior tibia inferior to the soleal line
103
Tibialis Posterior Insertion
crosses posterior medial malleolus (enters the foot above the sustentaculum tali. Navicular bone, all 3 cuneiforms, cuboid, 3rd and 4th MT bones
104
Tibialis Posterior Action
ankle PF, inversion
105
Flexor Digitorum Longus Origin
Posterior surface of tibia, just distal to soleal line
106
Flexor Digitorum Longus Insertion
passes posterior to medial malleolus, inserts on plantar surfaces pf bases of distal phalanges of lateral 4 toes
107
Flexor Digitorum Longus Action
helps in ankle PF, flexes IP and MTP joints lateral 4 toes
108
Flexor Hallucis Longus Origin
posterior fibular below the soleal line
109
Flexor Hallucis Longus Insertion
plantar base of distal phalanx of great toe
110
Flexor Hallucis Longus Action
flexes IP and ATP of great toe, helps to PF the ankle
