lower limb diagram Flashcards
Iliacus
Iliacus
Origin: iliac fossa
Insertion: lesser trochanter
Action: Flexes and rotates hip
Iliopsoas
psoas and iliacus muscles combine to from this muscle as it enters the thigh region
Gluteus Maximus
Origin: Posterior iliac crest and sacrum
Insertion gluteal tuberosit and iliotibial tract
Action: Extends and rotates hip; superior part abducts hip, inferior part aducts hip
Gluteus Medius
Origin: Lateral iliac surface
Insertion: Greater Trochanter
Action: abducts hip; anterior part flezes and rotates hip, posterior part extends and rotates hip
Tensor Fasciae Latae
Origin: Anterior superior iliac spine
Insertion: Iliotibial tract
Action: flexes and abducts hip, tenses fascia lata
Layer of connective tissue overlying thigh muscles
Fascia Lata
Iliotibial tract
Band of longitudinal fibers on lateral side of fascia lata, connects distally to the lateral condyle of tibia
Piriformis
Origin: Anterior sacral surface
Insertion: greater trochanter
Action: Abducts, extends and rotates hip
Gemellus Superior
Origin: Ischial Spine
Insertion: Greater Trochanter
Action: Adducts, extends and rotates hip
Obturator Internus
Origin: inner surface of obturator membrane
Insertion: greater trochanter
Action: adducts, extends and rotates hip
Gemellus Inferior
Origin: Ischial tuberosity
Insertion: greater trochanter
Action: adducts, extends an rotates hip
Quadratus Femoris
Origin: ischial tuberosity
Insertion: intertrochanteric crest
Action: adducts and rotates hip
Sartorius
Origin: anterior superior iliac spine
Insertion: medial tibial surface
Action: flexes, abducts and rotates hip; flexes and rotates knee
Rectus Femoris
Origin: anterior inferior iliac spine
Insertion: tibial tuberosity
Action: flexes hip; extends knee
Vastus Intermedius
Origin: anterior shaft of femur
Insertion: tibial tuberosity
Action: extends knee
Vastus Lateralis
Origin: linea aspera
Insertion: tibial tuberosity
Action: extends knee
Vastus Medialis
Origin: linea aspera
Insertion: tibial tuberosity
Action: extends knee
