Question

while flexing forward to tie your shoe laces (trunk flexion) ____ force is applied to the anterior vertebral bodies and ivds while ____ force is applied to the posterior vbs and ivds.

a) torsion/compression

b) compression/shear

c) tensile/compression

d) compression/tensile

Explanation:

When flexing forward (trunk flexion), the anterior vertebral bodies and inter - vertebral discs (IVDs) experience compression due to the weight of the upper body pressing down on them. The posterior vertebral bodies and IVDs are stretched, which means they experience tensile force.

Answer:

d) Compression/Tensile