Question

right sacroiliac flexion occurs about the _______ axis.
a) transverse axis
b) left oblique axis
c) right oblique axis
d) frontal axis

Explanation:

In sacroiliac joint mechanics, right sacroiliac flexion (also related to nutation and counternutation or rotational movements) occurs about the left oblique axis. The oblique axes of the sacroiliac joint (left and right oblique) are involved in rotational movements; right sacroiliac flexion (or the movement pattern) is associated with the left oblique axis. Transverse and frontal axes are more related to other types of spinal or joint movements (like flexion/extension in transverse for some, or frontal for abduction/adduction), not the specific sacroiliac flexion in this context.

Answer:

b) Left oblique axis