Muscles of Pelvic Walls and Floor 2.0 Flashcards
0
Q
Insertion of Piraformis and Obturator Internus
A
Greater trochanter of femur
1
Q
Origin of Piraformis
A
Pelvic surface of 2nd-4th sacral segments; superior margin of greater sciatic notch and sacrotuberous ligament
2
Q
Innervation of Piraformis
A
Anterior rami of S1 and S2
3
Q
Action of Piraformis
A
Laterally rotates hip joint; abducts hip joint; assists in holding head of femur in acetabulum
4
Q
Origin of Obturator internus
A
Pelvic surface of illium and ischium; obturator memebrane
5
Q
Innervation of Obturator Internus
A
Nerve to obturator internus (L5, S1, S2)
6
Q
Action of Obturator Internus
A
Laterally rotates hip joint; assists in holding head of femur in acetabulum
