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Flashcards in Posterior Pelvis Deck (18):
1

Gluteus Maximus origin and insertion

Origin- Coccyx, edge of sacrum, posterior iliac crest, sacrotuberous and sacroiliac ligaments

Insertion- Iliotibial tract (upper fibers) and gluteal tuberosity (lower fibers)

2

Gluteus Maximus Action

All fibers: extend, laterally rotate, and abduct the hip

Lower fibers: adduct the hip

3

Gluteus Medius origin and insertion

Origin- Gluteal surface of ilium, between posterior and anterior Gluteal lines, just below iliac crest

Insertion- Lateral aspect of greater trochanter

4

Gluteus Medius Action

All fibers: abduct the hip

Anterior Fibers: flex and medically rotate the hip

Posterior Fibers: extend and laterally rotate the hip

5

Gluteus Minimus origin and insertion

Origin- Gluteal Surface of the ilium between the anterior and inferior gluteal lines

Insertion- Anterior aspect of greater trochanter

6

Gluteus Minimus Action

Abduct , medically rotate and flex the hip

7

Piriformis origin and insertion

Origin- Anterior surface of sacrum

Insertion- Superior aspect of greater trochanter

8

Piriformis Action

Laterally rotate the hip; abduct the hip when the hip is flexed

9

Obturator Internus origin and insertion

Origin- Obturator membrane and inferior surface of obturator foramen

Insertion- medial surface of greater trochanter

10

Obturator Internus Action

Laterally rotate the hip

11

Obturator Externus origin and insertion

Origin- Rami of pubis and ischium, obturator membrane

Insertion- Trochanteric fossa of femur

12

Obturator externus Action

Laterally rotate the hip

13

Superior Gemellus origin and insertion

Origin- Ischial Spine

Insertion- Medial surface of greater trochanter

14

Superior Gemellus Action

Laterally rotate the hip

15

Inferior Gemellus Origin and insertion

Origin- ischial tuberosity

Insertion- Medial surface of greater trochanter

16

Inferior Gemellus Action

Laterally rotate the hip

17

Quadratus Femoris origin and insertion

Origin- Lateral border of ischial tuberosity

Insertion- Intertrochanteric crest, between the greater and lesser trochanter

18

Quadratic Femoris Action

Laterally rotate the hip