Question

between the sacrum and hipbones is a sacro - iliac joint with a planar diarthrosis articulation. what type of movement would someone observe? flexion gliding movement extension plantar flexion i dont know yet

Explanation:

Planar diarthrosis joints allow for gliding movements. Flexion and extension are movements at other types of joints like hinge - type joints. Plantar flexion is specific to ankle - foot movements.

Answer:

B. Gliding movement