Lower Extremity Flashcards
Gluteus Medius
O: Dorsal iliac crest
I: Greater trochanter
A: Hip Abductor, medial rotator
N: Superior Gluteal Nerve
Gluteus Maximus
O: Ilium, sacrum, coccyx, thoracolumbar fascia
I: Gluteal tuberosity of femur; iliotibial tract/band
A: Hip extensor, lateral rotator
N: Inferior Gluteal Nerve
Gluteus Minimus
O: Dorsal ilium
I: Greater trochanter
A: Hip abductor, medial rotator
N: Superior Gluteal Nerve
Tensor Fascia Lata
O: Lateral Iliac Crest
I: Iliotibial band
A: Leg abductor, knee extension
N: Superior Gluteal Nerve
Piriformis
O: Sacrum
I: Greater trochanter
A: External rotation
N: Lumbosacral plexus
Quadratus Femoris
O: Ischial Tuberosity
I: Intertrochanteric crest
A: External rotation and adduction
N: Lumbosacral plexus
Superior Gemelli
O: Ischial Spine
I: Obturator internus tendon
A: External rotation
N: Lumbosacral plexus
Inferior Gemelli
O: Ischial tuberosity
I: Obturator internus tendon
A: External rotation
N: Lumbosacral plexus
Obturator Internus
O: Ischiopubic ramus
I: Greater trochanter
A: External rotation and abduction
N: Lumbosacral plexus
Rectus Femoris
O: Iliac Spine (AIIS)
I: Proximal tibia via patellar tendon/quadriceps tendon
A: Knee extension, hip flexion
N: Femoral
Vastus Lateralis
O: Greater trochanter
I: Proximal tibia via patellar tendon/quadriceps tendon
A: Knee extension
N: Femoral
Vastus Medialis
O: Intertrochanteric line
I: Proximal tibia via patellar tendon/quadriceps tendon
A: Knee extension
N: Femoral
Vastus intermedius
O: Femoral shaft
I: Proximal tibia via patellar tendon/quadriceps tendon
A: Knee extension
N: Femoral
Sartorius
O: Iliac spine (ASIS)
I: Pes Anserine
A: Flexion, abduction, and external rotation of the hip; internal rotation of knee
N: Femoral
Iliacus
O: Iliac fossa
I: Lesser trochanter
A: Hip flexion and external rotation
N: Femoral
Psoas Major
O: Multiple vertebrae
I: Lesser trochanter
A: Hip flexion and external rotation
N: Lumbar plexus
Semimembranosus
O: Ischial Tuberosity
I: Medial Condyle of the Tibia
A: Hip extension, knee flexion
N: Sciatic Nerve
Semitendinosus
O: Ischial Tuberosity
I: Pes Anserine
A: Hip extension, knee flexion
N: Sciatic Nerve
Biceps Femoris
O: Ischial tuberosity (long head)
Posterior, proximal femur (short head)
I: Lateral proximal tibia, head of fibula
A: Hip extension, knee flexion
N: Sciatic Nerve
Adductor Longus, Brevis, and Magnus
O: Body of pubic bone
I: Medial shaft of femur
A: Hip adduction
N: Obturator
Gracilis
O: Pubic bone near ischium
I: Pes Anserine
A: Hip adduction
N: Obturator
Tibialis Anterior
O: Proximal tibia
I: Medial foot, cuneiform
A: Dorsiflexion, inversion
N: Deep fibular
Extensor Digitorum Longus
O: Anterior tibia, fibula, and interosseous membrane
I: 2-5 toes
A: Dorsiflexion, eversion of the ankle; extends MTP of toes 2-5
N: Deep fibular
Extensor Hallucis Longus
O: Fibula and the interosseous membrane
I: 1st toe
A: Dorsiflexion, eversion, and inversion of the ankle; extends MTP of big toe
N: Deep fibular
Fibularis Longus
O: Lateral fibula
I: Medial cuneiform
A: Plantar flexion, eversion
N: Superficial fibular
Fibularis Brevis
O: Lateral fibula
I: 5th metatarsal
A: Plantar flexion, eversion
N: Superficial fibular
Fibularis Tertius
O: Lateral fibula
I: 5th metatarsal
A: Plantar flexion, eversion
N: Superficial fibular
Gastrocnemius
O: Posterior distal femur
I: Calcaneus
A: Plantar flexion, flexion of the knee
N: Tibial
Soleus
O: Posterior distal femur
I: Calcaneus
A: Plantar flexion, flexion of knee
N: Tibial
Plantaris
O: Posterior distal femur
I: Calcaneus
A: N/A
N: Tibial
Popliteus
O: Lateral femoral condyle
I: Posterior tibia
A: Flex and internal rotation of knee
N: Tibial
Tibialis Posterior
O: Proximal tibia, fibula
I: Medial tarsal bones
A: Foot inversion, plantar flexion
N: Tibial
Flexor Digitorum Longus
O: Proximal Tibia
I: 2-5th distal phalanges
A: Plantar flexion, inversion
N: Tibial
Flexor hallicus longus
O: Proximal fibula
I: 1st distal phalanx
A: Plantar flexion, inversion
N: Tibial
