Question

how should the right ilium move during right sacroiliac flexion?
a) anterior-inferior
b) posterior-superior
c) posterior-inferior
d) anterior-superior

Explanation:

During sacroiliac flexion (also called anterior nutation of the sacrum), the ipsilateral ilium moves in an anterior-inferior direction to accommodate the sacral motion at the right sacroiliac joint.

Answer:

a) anterior-inferior