lower extremity Flashcards
gluteus maximus
o: gluteal surface of ilium
i: gluteal tuberosity of the femur
a: external rotation, extension of hip
gluteus medius
o: gluteal surface of ilium
i: greater trochanter of the femur
a: abduction of the hip, prevention of hip adduction
gluteus minimus
o: gluteal surface of ilium
i: greater trochanter of the femur
a: abduction of the hip, prevention of hip adduction
piriformis
o: sacrum
i: greater trochanter
a: rotate thigh laterally
psoas major
o: transverse processes of t12-L5 and lateral aspects of the discs between them
i: lesser trochanter of the femur
a: flexes and rotates thigh laterally
rectus femoris
o: a head- anterior inferior iliac spine p head- ilium just above the acetabulum
i: common quadriceps tendon into patella, tibial tuberosity via patellar ligament
a: knee extension; hip flexion
vastus medialis
o: intertrochanteric line of femur, medial aspect of linea aspera
i: common quadriceps tendon into patella, tibial tuberosity via patellar ligament
a: extends knee
vastus lateralis
o: greater trochanter, intertrochanteric line
i: patella via the quadriceps tendon
a: extends and stabilizes knee
vastus intermedius
o: anterolateral femur
i: patellar ligament
a: extends leg
sartorius
o: anterior superior iliac spine
i: upper medial surface of body of tibia
a: flexes hip and knee
gracilis
o: body of pubis & inferior pubic ramus
i: proximal medial surface of tibia
a: flexes, medially rotates
adductor magnus
o: pubis, tuberosity of ischium
i: femur
a: adduction of hip
semitendinosus
o: tuberosity of the ischium
i: tibia
a: flex knee
semimembranosus
o: ischial tuberosity
i: medial surface of tibia
a: hip extension knee flexion
biceps femoris
o: tuberosity of the ischium
i: the head of the fibula which articulates with the back of the lateral tibial condyle
a: flexes knee joint
