Deep Six

Question 1

Piriformis Origin

Answer 1

Anterior Surface of Sacrum

Question 2

Piriformis Insertion

Answer 2

Greater trochanter (through greater sciatic foramen)

Question 3

Piriformis Action

Answer 3

Hip external rotation
Hip abduction
Hip internal rotation when hip is flexed above 90 degrees

Question 4

PIriformis Innervation

Answer 4

Nerve to Piriformis

Question 5

Superior Gemellus origin

Answer 5

Ischial Spine

Question 6

Superior Gemellus Insertion

Answer 6

greater trochanter via tendon of obturator internus

Question 7

Superior Gemellus Action

Answer 7

Hip external rotation

Question 8

Superior Gemellus Innervation

Answer 8

Nerve to obturator internus

Question 9

Obturator internus origin

Answer 9

internal surface of obturator foramen and membrane

Question 10

Obturator internus insertion

Answer 10

Greater trochanter

Question 11

obturator internus action

Answer 11

hip external rotation

Question 12

obturator internus innervation

Answer 12

nerve to obturator internus

Question 13

Inferior Gemellus origin

Answer 13

ischial tuberosity

Question 14

Gemellus inferior insertion

Answer 14

greater trochanter via tendon of obturator internus

Question 15

Inferior Gemellus action

Answer 15

hip external rotation

Question 16

inferior gemellus innervation

Answer 16

nerve to quadratus femoris

Question 17

obturator externus origin

Answer 17

pubis and ischium near obturator foramen
external surface of obturator membrane

Question 18

obturator externus insertion

Answer 18

trochanteric fossa

Question 19

obturator externus action

Answer 19

hip external rotation

Question 20

obturator externus innervation

Answer 20

obturator

Question 21

quadratus femoris origin

Answer 21

ischial tuberosity

Question 22

quadratus femoris insertion

Answer 22

quadrate tubercle

Question 23

quadratus femoris action

Answer 23

hip external rotation
hip adduction

Question 24

quadratus femoris innervation

Answer 24

nerve to quadratus femoris