Anatomy lab: Muscles of the anterior and lateral thigh
Rectus femoris
Origin: Ilium. Insertion: Tibia via patellar ligament. Action: Extends knee, flexes hip
Vastus intermedius
Origin: femur. Insertion: tibia via patellar ligament. Action: extends knee. Most deep of the quads
Vastus lateralis
Origin: femur. Insertion: tibia via patellar ligament. Action: extends knee. Most lateral of the quads
Vastus medialis
Origin: femur. Insertion: tibia via patellar ligament. Action: extends knee. Most medial of the quads
Sartorius
Origin: ilium. Insertion: medial tibia. Action: flexes and laterally rotates hip; and flexes knee
Vastus medialis
Picture 42, 2nd bottom line on the right
Vastus lateralis
Picture 42, 2nd from the bottom line, left side
Rectus femoris
Picture 42, bottom 3rd line on the left
Vastus intermedius
Picture 43, middle of the 3 on the left
Sartorius
Picture 44, top line
Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius
What are the muscles of the quadriceps femoris?
Extends knee, flexes hip
What is the action of the rectus femoris?
Flexes and laterally rotates hip; and flexes knee
What is the action of the sartorius?
Extends knee
What is the action of the vastus intermedius?
Extends knee
What is the action of the vastus lateralis?
Extends knee
What is the action of the vastus medialis?
Tibia via patellar ligament
What is the insertion of the rectus femoris?
Medial tibia
What is the insertion of the sartorius?
Tibia via patellar ligament
What is the insertion of the vastus intermedius?
Tibia via patellar ligament
What is the insertion of the vastus lateralis?
Tibia via patellar ligament
What is the insertion of the vastus medialis?
Ilium
What is the origin of the rectus femoris?
Ilium
What is the origin of the sartorius?
Femur
What is the origin of the vastus intermedius?
Femur
What is the origin of the vastus lateralis?
Femur
What is the origin of the vastus medialis?