Gluteal and Posterior Femoral muscles Flashcards
Gluteus Maximus
o: b/w the poster iliac crest, post gluteal line, sacrotuberous ligament
I: gluteal tuberosity of femur and IT band
A: extension, LR of thigh
action on ITT with TFL to stabilize knee (going up stairs, standing from sitting)
N: inferior gluteal n.
Gluteus Medius
O: ilium b/w posterior and agnerior gluteal lines
I: greater trochanter of femur
A: Abduction of thigh
Posterior fibers LR thigh
anterior fibers MR thigh
Levels sacral base when opposite limb is unsupported
N: superior gluteal n.
Gluteus minimus
O: Ilium b/w anterior and inferiour gluteal lines
I: Greater trochanter of femur
A:abduction and MR of thigh, levels sacral base
N: Superior gluteal n.
Tensor fascia Latae
O: anterior outer portion of iliac crest next to ASIS
I: Via ITT to lateral tibial condyle
A: Abducts, flexes and MR thigh
tensing IT tract maintains the knee in extended position
N: superior gluteal n
Piriformis
O: anterior sacrum, lateral to anterior sacral foramina
I: Greater trochanter of femur
A: abduction of thigh, lateral rotation of thigh
N: nerve to piriformis
Gemellus superior
O: Ischial spine
I: tendon of obturator internus
A: LR of thigh
N: nerve to obturator internus
Obturator internus
O: internal surface of obturator membrane and margins of the obturator foramen
I: greater trochanter
A: LR and abduction of thigh
N: nerve to obturator internus
Gemellus inferior
O: ischial tuberosity near margin of lesser sciatic notch
I: tendon of obturator internus
A: LR of thigh
N: nerve to quadratus femoris
Quadratus femoris
O: ischial tuberosity
I: areat midway b/w trachanters on posterior surface of femur
A: LR of thigh
N: n. to quadratus femoris
Biceps femorsi
O: LH= ischail tuberosity
SH= middle 1/3 lip linea aspera of femur
I: lateral condyle of tibia, head of fibula
A: LH: extends thigh, flexes leg
SH: flexes leg
N: LH: tibial component of sciatic n.
SH: common fibular
Semimibranosus
O: Ischial tuberosity
I: posterior medial condyle of tibia
A: E thigh, F leg and MR leg when knee is flexed
N: tibial compenent of sciatic n.
Semitendinosus
O: Ischial tuberosity
I: medial anterior surface of tibia below condyle on pes anserinus
A: ex thigh, F and MR leg when knee is flexed
Sympathetic chain ganglia
lie anterior to rib head 1-12
continues to sacrum
manipulated by contacting with rib head thru stimulation (pulsatile) or inhibition (constant)
**goal is balancing SNS tone
