Question

What structural change to the spine accompanied bipedal locomotion in human evolution?

Options

• Straightening of all vertebral segments

• Development of lumbar curvature

• Flattening of the lumbar region

• Reduction in vertebral number

Answer 1

Development of lumbar curvature was an important structural change that accompanied bipedal locomotion in human evolution. This curvature in the lower spine helps support the upright posture and distributes body weight effectively.