Question

When you have flexion in the lumbar spine, which way does the sacrum move?

A. Anteriorly
B. Posteriorly
C. Laterally
D. Medially

Answer 1

During lumbar spine flexion, the sacrum moves anteriorly, consistent with the forward bending movement of this type of vertebral flexion.

Step-by-step explanation:

When flexion occurs in the lumbar spine, the sacrum moves anteriorly. This movement is part of the sagittal plane motions that involve the vertebral column and the associated joints. Flexion of this area typically involves anterior bending or a forward movement, which corresponds with the sacrum moving forward. Therefore, the correct answer to the question, 'When you have flexion in the lumbar spine, which way does the sacrum move?' is A. Anteriorly.