Set 9 Muscles Hip and Quadriceps

Quadricep Muscle Group

Osgood-Schlatters Disease During activities that involve a lot of running and jumping, the pull of the front thigh muscles (quadriceps) can place tension on the tendon that connects the kneecap to the shinbone. In Osgood-Schlatter disease, the tendon may begin to pull away from the spot where it attaches to the shinbone, causing pain and swelling.

Trochanter of Femur

Intertrochanteric line of Femur

Trochanter of Femur

Vastus intermedius

Origin: Origin: Insertion: Insertion: Action: Action: Proximal 2/3 of femur superior border of patella and tibial tuberosity by patellar ligament Extends leg at knee

Vastus medialis

Origin: Origin: Insertion: Insertion: Action: Action: intertrochanteric line of femur; with tendon of adductors medial border of patella and tibial tuberosity by patellar ligament extends leg at knee

Vastus lateralis

Origin: Origin: Insertion: Insertion: Action: Action: upper intertrochanteric line of femur; with tendon of gluteus maximus lateral border of patella and tibial tuberosity by patellar ligament extends leg at knee

Rectus femoris

Origin: Origin: Insertion: Insertion: Action: Action: iliac spine and brim of acetabulum of pelvis upper border of patella and tibial tuberosity by patellar ligament extends leg at knee and flexes thigh at hip

Gluteus medius

Origin: Origin: Insertion: Insertion: Action: Action: outer surface of ilium greater trochanter of femur (head) abducts femur at hip and rotates medially; major lateral hip stabilizer

Adductor longus

Origin: Origin: Insertion: Insertion: Action: Action: front of pubis between crest and symphysis middle 1/3 of femur adducts thigh at hip; assists in thigh flexion and medial hip rotation