Specialist part · #4484 · 3 pts
What is the role of a properly placed headrest in case of a road accident?
aIt protects the top of the head.
bIt protects the cervical vertebrae.
cIt protects the back.
Why?
When correctly adjusted, the head restraint shown in the picture limits sudden movement of the head relative to the torso, particularly in a rear impact. This protects the cervical vertebrae and surrounding tissues. It should support the back of the head; protecting the crown of the head or the back is not its main purpose.