Lower Limb Muscles - Origins and Insertions Flashcards
Psoas minor
O: Sides of T12-L1 vertebrae and intervertebral discs
I: Pectineal line of pubis
missing in lots of bodys
Psoas major
O: Transverse processes of all lumbar vertebrae; sides of bodies of vertebrae T12-L5 and intervertebral discs in between
I: Lesser trochanter of femur
Iliacus
O: Iliac fossa, ala of sacrum and sacro-iliac ligaments
I: Lesser trochanter of femur
Sartorius
O: Anterior superior iliac spine
I: Anterior aspect of medial condyle of tibia (pes anserinus)
Tensor fasciae latae
O: Anterior superior iliac spine and anterior part of iliac crest
I: Iliotibial band, which attaches to antero-lateral tubercle of the tibia
Iliotibial band
O: Femur via the lateral intermuscular septum
I: Lateral Proximal tibia (Gerdy’s tubercle)
Gluteus maximus
O: Ilium posterior to posterior gluteal line, dorsal lower sacrum and coccyx, erector spinae aponeurosis and sacrotuberous ligament
I: Iliotibial tract which inserts into lateral condyle of tibia and gluteal tuberosity
Gluteus medius
O: External surface of ilium between anterior and posterior gluteal lines
I: Lateral surface of greater trochanter of femur
Gluteus minimus
O: External surface of ilium between anterior and inferior gluteal lines
I: Greater trochanter of femur
Piriformis
O: Anterior surface of sacrum
I: Greater trochanter of femur
Superior gemellus
O: Ischial spine
I: Greater Trochanter - Trochanteric fossa of femur
Obturator internus
O: Internal surface of obturator membrane and surrounding bones
I: Greater Trochanter - Trochanteric fossa of femur
Inferior gemellus
O: Ischial tuberosity
I: Greater Trochanter - Trochanteric fossa of femur
Obturator externus
O: External margins of obturator foramen and obturator membrane
I: Greater Trochanter - Trochanteric fossa of femur
Quadratus femoris
O: Lateral border of ischial tuberosity
I: Quadrate tubercle
Gracilis
O: Anterior body of pubis and inferior pubic ramus
I: Anterior surface of medial condyle of tibia (Pes Anserinus)