gluteal muscles

Question 1

Tensor fascia latae- O, I, IN, A

Answer 1

O- Iliac tubercle, iliac crest, ASIS

I- iliotibial tract, tibial condyle, fibular head, crural fascia

IN- Sup gluteal N (l4,l5, S1)

A- support tibia/femur, head of femur and extend leg

Question 2

Gluteus maximus- O, I, IN, A

Answer 2

O- Post gluteal line, iliac crest, dorsal surface of sacrum/coccyx, sacrotuberous lig

I- IT tract, gluteal tuberosity

IN- inf gluteal (L5,S1,S2)

A- extend thigh, lat rot, abduct thigh

Question 3

Gluteus medius- O, I, IN, A

Answer 3

O- Iliac wing, bw ant and post gluteal lines

I- Greater trochanter (lat)

IN- Sup gluteal n (l4,L5,S1)

A- abduct thigh, medially rotate + flex thigh (ant), lat roate + flex thigh (post), maintain upright post

Question 4

Gluteus minimus- O, I, IN, A

Answer 4

O- iliac wing, bw ant and inf gluteal lines

I- greater trochanter (ant)

IN- Sup gluteal (,l4L5,S1)

A- abduct thigh, medially rotate + flex thigh (ant), lat roate + flex thigh (post), maintain upright post

Question 5

Piriformis- O, I, IN, A

Answer 5

O- pelvic sacral surface (bw1-4), Greater sciatic notch, sacrotuberous lig, gluteal surface of ilium

I- Greater trochanter (ant/medial)

IN- nerve to piriformis (S1, S2)

A- externally rotate + extend thigh, abduct flexed thigh, steady femoral head

Question 6

Obturator Internus- O, I, IN, A

Answer 6

O- inner aspect of obturator membrane, hip bone, tendoneus arch of obturator canal

I- Greater trochanter (med)

IN- n to obturator internus, sup gemellus (l5, S1,s2)

A-externally rotate + extend thigh, abduct flexed thigh, steady femoral head

Question 7

Gemellus sup- O, I, IN, A

Answer 7

O- dorsal ishial spine

I- Greater tochanter (med)

IN- N to obturator internus, sup gemmelus (l5, S1, s2)

A- externally rotate + extend thigh, abduct flexed thigh, steady femoral head

Question 8

Quadratus femoris- O, I, IN, A

Answer 8

O- Ishial tuberosity

I- quadrate tubercle

IN- n to quadratus femoris, inf gamellus l4,(l5,S1)

A- externally rotate + extend thigh, abduct flexed thigh, steady femoral head

Question 9

Inf gemellus- O, I, IN, A

Answer 9

O- ishial tuberosity

I- Greater trochanter (med)

IN- n to quadratus femoris, inf gemmelus (l4,l5,s1)

A- externally rotate + extend thigh, abduct flexed thigh, steady femoral head