Anterior and Medial Thigh: Origin, Insertion, Actions Flashcards
Pectineus
O - Superior ramus of pubis
I - Pectineal line of femur
A - Adduction of thigh, Flexion of thigh, Medial rotation of thigh
Sartorius
O - ASIS
I - Proximal tibia: medial aspect
A - Flexion, abduction, lateral rotation at hip + knee flexion
Iliacus
O - Iliac fossa, Sacrum
I - Lesser trochanter of femur (Iliopsoas)
A - Flexion of thigh at hip, stabilize hip joint
Psoas Major
O - Lumbar vertebrae; TPs & vertebral bodies
I - Lesser trochanter of femur (Iliopsoas)
A - Postural muscle, controls deviation of the trunk, active during standing
Rectus Femoris
O - ASIS
I - Base of patella via quadriceps tendon; via patellar ligament to tibial tuberosity
A - Extension of leg at knee, stabilize hip joint, flexion at hip
Vastus Lateralis
O - Linea aspera; lateral lip
I - Base of patella via quadriceps tendon; via patellar ligament to tibial tuberosity
A - Extension of leg at knee
Vastus Intermedius
O - Linea aspera; medial lip
I - Base of patella via quadriceps tendon; via patellar ligament to tibial tuberosity
A - Extension of leg at knee
Adductor Longus
O - Body of pubis
I - Linea aspera of femur
A - Adduction of thigh, flexion of thigh
Adductor Brevis
O - Body and inferior ramus of pubis
I - Linea aspera of femur
A - Adduction of thigh, flexion of thigh
Adductor Magnus (adductor)
O - Ischiopubic ramus
I - Linea aspera of femur
A - Adduction of thigh, flexion of thigh
Adductor Magnus (hamstring)
O - Ischial tuberosity
I - Adductor tubercle of femur
A - Extension of thigh
Gracilis
O - Body and inferior ramus of pubis
I - Proximal tibia: medial aspect
A - Adduction of thigh, flexion at knee, medial rotation of leg
Obturator Externus
O - Obturator foramen/membrane
I - Greater trochanter of femur
A - lateral rotation of thigh, stabilize hip joint
