Lower Extremadies AOIs (updated) Flashcards
gluteus maximus (origin and Insertion)
O: outer surface of ilium, sacrum, coccyx, and sacrotuberous ligament
I: iliotibial tract and gluteal tuberosity of femur
gluteus minimus (origin and Insertion)
O: outer surface of ilium
I: greater trochanter of femur
gluteus minimus (origin and Insertion)
O: outer surface of ilium
I: greater trochanter of femur
tensor fasciae latae (origin and Insertion)
O: iliac crest
I: iliotibial tract
piriformis (origin and Insertion)
O: anterior surface of sacrum
I: greater trochanteric fossa
superior gemellus (origin and Insertion)
O: spine of ischium
I: greater trochanteric fossa
obturator internus (origin and Insertion)
O: inner surface of obturator membrane
I: greater trochanteric fossa
inferior gemellus (origin and Insertion)
O: ischial tuberosity
I: greater trochanteric fossa
obturator externus (origin and Insertion)
O: outer surface of obturator membrane
I: greater trochanteric fossa
sartorius (origin and Insertion)
O: anterior superior iliac spine
I: upper medial surface of tibia
iliacus (origin and Insertion)
O: iliac fossa
I: lesser trochanter of femur
psoas (origin and Insertion)
O: T12 body and L1-L5 body, transverse process, and intervertebral discs
I: lesser trochanter of femur
pectineus (origin and Insertion)
O: superior ramus of pubis
I: upper end shaft of femur
rectus femoris (origin and Insertion)
O: anterior inferior iliac spine
I: quadratic tendon –> patellar tendon –> tibial tuberosity
vastus lateralis (origin and Insertion)
O: upper end and shaft of femur
I: quadratic tendon –> patellar tendon –> tibial tuberosity
vastus medialis (origin and Insertion)
O: upper end shaft of femur
I: quadratic tendon –> patellar tendon –> tibial tuberosity
vastus intermedialis (origin and Insertion)
O: shaft of femur
I: quadratic tendon –> patellar tendon –> tibial tuberosity
gracilis (origin and Insertion)
O: inferior ramus of pubic, ramus of ischium
I: upper part of shaft of tibia on medial side
adductor longus (origin and Insertion)
O: body of pubis
I: posterior surface of shaft of femur (near linea aspera)
adductor brevis (origin and Insertion)
O: inferior ramus of pubis
I: posterior surface of shaft of femur (near linea aspera)
adductor magnus (origin and Insertion)
O: inferior ramus of pubics, ramus of ischium, ischial tuberosity
I: posterior surface of shaft of femur (near linea aspera)
biceps femoris LH (origin and Insertion)
O: ischial tuberosity
I: head of fibula
biceps femoris SH (origin and Insertion)
O: shaft of femur (anterior)
I: head of fibula
semitendinosus (origin and Insertion)
O: ischial tuberosity
I: upper part of medial surface of shaft of tibia
semimembranosus (origin and Insertion)
O: ischial tuberosity
I: medial condyle of tibia
adductor magnus (hamstring act) (origin and Insertion)
O: ischial tuberosity
I: adductor tubercle of femur
gluteus maximus (action)
extends and laterally rotates thigh
gluteus medius (action)
abducts thigh ; tilts pelvis when walking
gluteus minimus (action)
abducts thigh ; anterior fibers medially rotate thigh
tensor fascia latea (action)
abduct thigh
piriformis (action)
lateral rotater of thigh
superior and inferior gemellus (action)
lateral rotator of thigh
obturator externus and internus (action)
lateral rotator of thign
sartorius (action)
flexes thigh
abducts thigh
medially rotates thigh
iliacus (action)
flexes thigh on trunk (and vise versa)
psoas (action)
flexes thigh on trunk (and vise versa)
pectineus (action)
flexes and adducts thigh
rectus femoris (action)
knee extension
vastus lateralis (action)
knee extension
vastus medialis (action)
knee extension
vastus intermedialis (action)
knee extension
gracilis (action)
adducts thigh
adductor longus (action)
adducts thigh
adductor brevis (action)
adducts thigh
adductor magnus (action)
adducts thigh
biceps femoris (action)
knee flexion
semitendinosus (action)
knee flexion
semimembranosus (action)
knee flexion
adductor magis (hamstring act) (action)
thigh extension
anterior tibialis (origin and Insertion)
O: lateral condyle of the tibia and upper lateral surface of tibia
I: medial cuneiform
extensor digitorum longus (origin and Insertion)
O: lateral tibial condyle, anterior fibula, lateral interosseous membrane
I: dorsum of lateral 4 toes (via extensor expansions)
extensor hallucis longus (origin and Insertion)
O: middle anterior surface of fibula and middle of the interosseous membrane
I: base of distal phalanx of great toe
extensor digitorum brevis (origin and Insertion)
O: superolateral surface of calcaneus
I: extensor expansion of toes 1-4
fibualris brevis (origin and Insertion)
O: lower 1/3 of lateral fibula
I: 5th metatarsal tuberosity
fibularis longus (origin and Insertion)
O: upper 2/3 of lateral fibula
I: medial cuniform and base of 1st metatarsal
fibularis tertius (origin and Insertion)
O: distal anterior surface of fibula
I: dorsum shaft of 5th metatarsal
popliteus (origin and Insertion)
O: lateral condyle of femur
I: posterior tibia superior to soleul line
flexor digitorum longus (origin and Insertion)
O: middle of posterior tibia
I: base of distal phalange 2-5
flexor hallicus longus (origin and Insertion)
O: lower 2/3 of posterior fibula
I: base of distal phalanx of great toe
posteior tibialis (origin and Insertion)
O: interosseous mebrane, posteromedial fibula, posterolateral tibia
I: tuberosity of navicular and medial cuniform, metatarsals 2-5
gastrocnemuis (origin and Insertion)
O: medial head- superior to medial femoral condule
lateral head- superior to lateral femoral condyle
I: dorsum of calcaneous via calcaneal tendon
plantaris (origin and Insertion)
O: superior to the lateral femoral condyle
I: dorsum of calcaneous, medial to the calcaneal tendon
soleus (origin and Insertion)
O: head and upper shaft of fibula and soleul line of tibia
I: dorsum of calcaneous via calcaneal tendon
anterior tibialis (action)
dorsiflexes and inverts foot
extensor digitorum longus (action)
extends the metatarsophalageal, distal interphalangeal and proximal interphalangeal joints of the lateral 4 toes
extensor hallucis longus (action)
extends metatarsophalangeal and interphalangeal joints of the great toe
extensor digitorum brevis (action)
extends toes 1-4
fibularis brevis (action)
plantar flexes and everts foot
fibularis longus (action)
plantar flexes and everts foot
fibularis tertius (action)
everts foot
popliteus (action)
knee flexion and medially rotates leg
flexor digitorum longus (action)
plantar flexes and flexes metatarsophalengeal, distal interphalangeal and proximal interphalangeal joints of toes 2-5
flexor hallicus longus (action)
plantar flexes and fleses metatarsophalngeal and proximal interphalangeal joints of big toe
posterior tibialis (action)
plantar flexes and inverts foot
gastrocnemius (action)
dorsiflexes and plantar flexes foot
plantaris (action)
dorsiflexes and plantar flexes foot
soleus (action)
plantar flexes foot