Structures list 2

What muscle is this? Where does it originate / insert? What is it innervated by? What is its action?

Gluteus maximus originates on the ilium and inserts on the iliotibial tract (75%) and the gluteal tuberosity (25%). It is innervated by the inferior gluteal nerve and abducts the thigh.

What muscle is this? Where does it originate / insert? What is it innervated by? What is its action?

Gluteus medius originates on the ilium and inserts on the greater trochanter. It is innervated by the superior gluteal nerve and abducts the thigh.

What muscle is this? Where does it originate / insert? What is its action?

Piriformis originates on the sacrum and inserts on the greater trochanter. It laterally rotates the thigh.

What muscle is this? Where does it originate / insert? What is its action?

Superior gemellus originates on the ischial spine and inserts on the greater trochanter. It laterally rotates the thigh.

What muscle is this? Where does it originate / insert? What is its action?

The tendon of the obturator internus originates on the ischium and inserts on the greater trochanter. It laterally rotates the thigh.

What muscle is this? Where does it originate / insert? What is its action?

Inferior gemellus originates on the ischial tuberosity and inserts on the greater trochanter. It laterally rotates the thigh.

What muscle is this? Where does it originate / insert? What is its action?

Quadratus femoris originates on the ischial tuberosity and inserts on the intertrochanteric crest. It laterally rotates the thigh.

What are the major gluteal muscles? (superficial to deep)

Gluteus maximus, gluteus medias, gluteus minimus

Where do the major gluteal muscles originate?

Gluteus maximus, gluteus medias, and gluteus minimus originate on the ilium

What is the action of the major gluteal muscles?

Gluteus maximus, gluteus medias, and gluteus minimus abduct the thigh

What are the minor gluteal muscles?

Piriformis, superior gamellus, obturator internus, inferior gamellus, quadratus femoris

What is the insertion of the minor gluteal muscles?

Piriformis, superior gamellus, obturator internus, and inferior gamellus insert on the greater trochanter. Quadratus femoris inserts on the intertrochanteric crest.

What is the action of the minor gluteal muscles?

Piriformis, superior gamellus, obturator internus, inferior gamellus, and quadratus femoris laterally rotate the thigh.

What muscle is this? Where does it originate / insert? What is its innervation? What is its action?

Gluteus maximus originates on the ilium and inserts on the iliotibial tract. It is innervated by the inferior gluteal nerve and extends the thigh

What muscle is this? Where does it originate / insert? What is it innervated by? What is its action?

Biceps femoris long head originates on the ischial tuberosity and inserts on the fibula. It is innervated by the tibial nerve and flexes the leg.