Gluteal Muscles Flashcards
Gluteus Maximus origin
Posterior sacrum and coccyx, ilium posterior to posterior gluteal line, sacrotuberous ligament
Gluteus Maximus insertion
Some insert on gluteal tuberosity, most insert onto the iliotibial band (ITB) which inserts into lateral condyle of tibia (anterolaterl or Gerry tubercle)
Gluteus Maximus action
Extends thigh (especially from flexion), lateral rotation
Gluteus Maximus innervation
Inferior gluteal nerve L5, S1, S2
Gluteus Medius origin
Lateral ilium between anterior and posterior gluteal lines
Gluteus Medius insertion
Lateral surface of greater trochanter
Gluteus Medius action
Abduct the thigh (keeps the pelvis level during ipsilateral stance), internal rotation
Gluteus Medius innervation
Superior gluteal nerve L4, L5, S1
Gluteus Minimus origin
Lateral ilium between anterior and inferior gluteal lines
Gluteus Minimus insertion
Anterior surface of greater trochanter
Gluteus Minimus action
Abduct the thigh (keeps the pelvis level during ipsilateral stance), internal rotation
Gluteus Minimus innervation
Superior gluteal nerve L4, L5, S1
Tensor Fascia Latae origin
ASIS, anterior iliac crest
Tensor Fascia Latae insertion
Iliotibial band (ITB), which inserts into lateral condyle of tibia (Gerdy)
Tensor Fascia Latae action
Flexes the thigh, slight hip abduction and internal rotation
Tensor Fascia Latae innervation
Superior gluteal nerve L4, L5, S1
