Anatomy - MOINA of the Gluteal Region

origin of gluteus maximus

outer surface of ilium, sacrum, coccyx, sacrotuberous ligament

insertion of gluteus maximus

iliotibial tract and gluteal tuberosity of femur

innervation of gluteus maximus

inferior gluteal nerve

action of gluteus maximus

• extends and laterally rotates hip joint

• through iliotibial tract, it extends knee joint

origin of gluteus medius

outer surface of ilium

insertion of gluteus medius

lateral surface of greater trochanter of femur

innervation of gluteus medius

superior gluteal nerve

action of gluteus medius

• abducts thigh at hip joint

• tilts pelvis when walking to permit opposite leg to clear ground

origin of gluteus minimus

outer surface of ilium

insertion of gluteus minimus

anterior surface of greater trochanter of femur

innervation of gluteus minimus

superior gluteal nerve

action of gluteus minimus

• abducts thigh at hip joint

• tilts pelvis when walking to permit opposite leg to clear ground

origin of tensor fasciae latae

iliac crest

insertion of tensor fasciae latae

iliotibial tract

innervation of tensor fasciae latae

superior gluteal nerve

action of tensor fasciae latae

assist gluteus maximus in extending the knee joint

origin of piriformis

anterior surface of sacrum

insertion of piriformis

upper border of greater trochanter of femur

innervation of piriformis

1st and 2nd sacral nerves

action of piriformis

lateral rotator of thigh at hip joint

origin of obturator internus

inner surface of obturator membrane

insertion of obturator internus

upper border of greater trochanter of femur

innervation of obturator internus

sacral plexus

action of obturator internus

lateral rotator of thigh at hip joint

origin of gemellus superior

spine of ischium

insertion of gemellus superior

upper border of greater trochanter of femur

innervation of gemellus superior

sacral plexus

action of gemellus superior

lateral rotator of thigh at hip joint

origin of gemellus inferior

ischial tuberosity

insertion of gemellus inferior

upper border of greater trochanter of femur

innervation of gemellus inferior

sacral plexus

action of gemellus inferior

lateral rotator of thigh at hip joint

origin of quadratus femoris

lateral border of ischial tuberosity

insertion of quadratus femoris

quadrate tubercle of femur

innervation of quadratus femoris

sacral plexus

action of quadratus femoris

lateral rotator of thigh at hip joint