Question

curvatures of the spine serve the body by _________.
a) limiting the flexibility of the spine and preventing hyperextension
b) providing space for soft organs in the various body cavities
c) giving additional springiness and flexibility to the spine which absorbs shock
d) applying greater pressure to the intervertebral disks preventing them from slipping

Explanation:

The curvatures of the spine add spring - like quality and flexibility, which helps in shock absorption during activities like walking, running etc. Option A is incorrect as curvatures don't limit flexibility but enhance it. Option B is not the main function of spinal curvatures. Option D is wrong as curvatures don't apply pressure to prevent disc slippage.

Answer:

C. giving additional springiness and flexibility to the spine which absorbs shock