Final answer:
Full coverage helmets, also called full-face helmets, provide extensive protection by covering the entire head and face, crucial for preventing head injuries and potential nervous system damage.
Step-by-step explanation:
Full coverage helmets, which are essential for protecting the head from injuries during activities like bicycling, are also called full-face helmets. These helmets are designed to cover the entire head including the face, providing maximum protection. They are an important safety feature for preventing damage to the nervous system and avoiding lifelong disabilities that could result from head injuries.
These full coverage helmets are not only a smart choice for cyclists but also for those engaging in other high-risk sports or activities where there is a significant risk of head injury. By encapsulating the entire head, they offer comprehensive protection that may include a visor for the eyes and face shield to guard against impacts and debris.