Muscles Of The Lower Limb Flashcards
Gluteus Maximus
O: ilium, sacrum, coccyx
I: gluteal tuberosity of femur, iliotibial band
A: thigh extension, abduction, lateral (external) rotation at hip
Piriformis
O: sacrum
I: greater trochanter of femur
A: thigh lateral rotation at hip
Gluteus medius
O: ilium
I: greater trochanter of the femur
A: thigh abduction, medial rotation at hip
Gluteus minimus
O: ilium
I: greater trochanter of femur
A: abduction of thigh, medial rotation at thigh
Semimembranosus
O: ischial tuberosity of ischium
I: medial condyle of tibia
A: thigh extension, internal rotation, leg flexion at knee
Semitendinosus
O: ischial tuberosity of ischium
I: medial condyle of tibia
A: thigh extension, medial rotation, leg flexion at knee
Biceps femoris
O: ischial tuberosity of ischium (long head), linea aspera of femur (short head)
I: head of fibula, lateral condyle of tibia
A: thigh extension, lateral rotation at hip, leg flexion at knee
Adductor brevis
O: pubis
I: linea aspera and posterior femur
A: thigh adduction at hip
Adductor longus
O: pubis
I: linea aspera and posterior femur
A: thigh addiction at hip
Adductor magnus
O: pubis
I: linea aspera and posterior femur
A: thigh adduction at hip
Pectinius
O: pubis
I: linea aspera and posterior femur
A: thigh adduction at hip
Gracilis
O: pubis
I: proximal, medial tibia
A: thigh adduction at hip, medial rotation at hip, weakly supports leg flexion at knee
Iliopsoas
O: ilium (iliacus), lower vertebrae (psoas major)
I: letter trochanter of femur
A: thigh flexion at hip, trunk flexion at hip, psoas only: lateral flexion of vertebral column at intervertebral joints
Sartorius
O: anterior superior iliac spine of ilium
I: proximal medial tibia
A: thigh flexion, abduction, lateral rotation at hip, weakly supports leg flexion at knee
Tensor fasciae latae
O: iliac crest, anterior superior iliac spine
I: iliotibial tract
A: thigh flexion, medial rotation and abduction at hip
Rectus femoris
O: anterior inferior iliac spine of ilium, acetabulum of os coxa
I: tibial tuberosity of tibia via patellar ligament
A: thigh flexion at hip and leg flexion at knee
Vastus lateralis
O:proximal femur
I: tibial tuberosity of tibia via patellar ligament
A: leg extension at knee
Vastus intermedius
O: proximal femur
I: tibial tuberosity of tibia via patellar ligament
A: leg extension at knee
Vastus medialis
O: proximal femur
I: tibial tuberosity of tibia via patellar ligament
A: leg extension at knee
Tibialis anterior
O: proximal anterior tibia
I: medial foot
A: foot dorsiflexion, inversion at ankle
Extensor digitorum longus
O: lateral tibia/fibula
I: phalanges
A: toe extension, foot dorsiflexion
Extensor hallucis longus
O: fibula
I: first digit distal phalanx
A: extension of big toe, foot dorsiflexion
Fibularis (peroneus) longus
O: fibula
I: medial foot
A: foot plantar flexion, eversion at ankle
Fibularis (peroneus) brevis
O: Fibula
I: bottom of lateral foot
A: foot eversion and plantar flexion at ankle
Tibialis posterior
O: proximal posterior tibia and fibula
I: tarsals and metatarsals
A: foot inversion and plantar flexion at ankle
Flexor digitorum longus
O: posterior tibia
I: phalanges
A: toe flexion at several joints, weak plantar flexion, inversion at ankle
Flexor hallucis longus
O: fibula
I: distal phalanx of great toe
A: great toe flexion at several joints, foot plantar flexion, inversion at ankle
Plantaris
O: distal femur
I: calcaneus
A: foot plantar flexion at ankle (weak), weak leg flexion at knee
Gastrocnemius
O: distal femur
I: calcaneus
A: Foot plantar flexion at ankle, leg flexion at knee
Soleus
O: proximal tibia and fibula
I: calcaneus
A: foot plantar flexion at ankle
