piriformis Flashcards
1
Q
piriformis position
A
anterior aspect of the sacrum
2
Q
piriformis origin
A
anterior margin and 2, 3, 4 foramen of the sacrum
3
Q
piriformis insertion
A
upper medial greater trochanter
4
Q
piriformis action
A
laterally rotates the hip, abduction if the hip is flexed
5
Q
piriformis function
A
stabilisation of the hip
6
Q
piriformis nerve supply
A
anterior rami L5, S1, S2
