Muscles of Gluteal Region Flashcards
Gluteus Maximus insertion
illiotibial tract, which inserts into lateral condyle of tibia
gluteal tuberosity of femur
Gluteus Maximus Origin
Illium posterior to posterior gluteal line
dorsal surface of sacrum and coccyx
sacrotuberous ligament
Gluteus maximus innervation
Inferior gluteal nerve (L5, S1, S2)
Gluteus maximus action
Extends hip joint between flexed and stand positions
assist in its lateral rotation
steadies thigh and assist in rising from sitting position
Gluteus Medius origin
External surface of illium between anterior and posterior gluteal lines
Insertion of Gluteus medius
lateral surface of greater trochanter of femur
Innervation of Gluteus medius
Superior Gluteal nerve (L4,L5,S1)
Action of gluteus medius
Abduct and anterior portion medially rotates hip joint
keep pelvis level when opposite limb elevates
Origin of Gluteus minimus
External surface of illium between anterior and inferior gluteal lines
Insertion of Gluteus Minimus
Anterior Surface of greater femur trochanter
Innervation of Gluteus Minimus
Superior Gluteal Nerve (L4,L5,S1)
Action of Gluteus Minimus
abducts and anterior portions medially rotate hip joint
keep pelvis level when opposite limb is elevated
Tensor Fasciae Latae origin
Anterior superior illiac spine
anterior part of illiac crest
Insertion of tensor fasciae Latae
Illiotibial tract, which attaches to lateral condyle of tibia
Innervation of tensor Fasciae Latae
Superior gluteal nerve (L4,L5,S1)
action of Tensor Fasciae Latae
Flexes hip joint
acts with gluteus maximus to stabalize the extended knee joint
Gemelli, superior and inferior origin
Superior: ischial spine
Inferior: Ischial tuberosity
Gamelli
superior and inferior insertion
Medial surface of greater trochanter of femur
innervation Gamelli, superior and inferior
Superior: nerve to obturator(L5,S1)
Inferior: Nerve to quadratus femoris (L5, S1)
Action of Gamelli superior and inferior
Laterally rotate extended hip joint
abduct flexed hip joint
steady femoral head in acetabulum
Origin Quadratus Femoris
Lateral border of ischial tuberosity
Insertion of Quadratus femoris
Quadrate tubercle on intertrochanteric crest
Innervation of Quadratus femoris
nerve to quadratus femoris (L5,S1)
Action of Quadratus Femoris
Laterally rotates hip joint
pulls femoral head into acetabulum to stabilize hip joint
Obturator Internus and Piriformis
Last exa, review