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SPM210 LL Muscles

Origin/Insertion/Action of lower limb muscles

QuestionAnswer
Psoas Major Origin: T12-L5. Insertion: Lesser Trochanter with Iliacus muscle. Action: Flexes the thigh at the hip. Commonly called the iliopsoas muscle.
Iliacus Muscle Origin: Iliac Fossa. Insertion: Lesser Trochanter with Psoas Major muscle. Action: Flexes the thigh at the hip. Commonly called the Iliopsoas Muscle.
Tensor Fasciae Latae Origin: ASIS, Anterior Portion of Iliac Crest. Insertion: IT band, which inserts on the lateral condyle of the tibia.
Sartorius ORIGIN: ASIS. INSERTION: Superior part of medial surface of tibia. ACTION: Flexes, abducts, laterally rotates thigh at hip. Flexes, medially rotates leg at knee.
Rectus Femoris ORIGIN: Anterior inferior iliac spine and groove superior to acetabulum. INSERTION: Base of patella and to tibial tuberosity via patellar ligament. ACTION: Extends the leg at the knee joint and flexes the thigh at the hip joint
Vastus Lateralis ORIGIN: Greater trochanter and lateral lip of linea aspera of femur INSERTION: Base of patella and to tibial tuberosity via patellar ligament. ACTION: Extends the leg at the knee joint.
Created by: 506267729