The **protective helmet** is a crucial element for the safety of motorcyclists. Its main function is to **protect the head** in the event of an accident, preventing serious injuries. One of the ways the helmet protects is by **preventing abrasion of the face or head** when the motorcyclist slides on the pavement after a fall. This is possible because the helmet covers and protects the surface of the head and face, preventing direct contact with the ground.

Additionally, the helmet is designed to **distribute the impact force** throughout its structure, which helps prevent the energy of the blow from concentrating on a single point of the head, thus reducing the risk of severe injuries. However, its main function in the context of abrasion is to protect the skin and skull from rubbing against the asphalt, which can cause burns and serious wounds.

Therefore, the use of a suitable and well-fitted helmet is essential to minimize injuries in the event of an accident, especially those related to abrasion when sliding on the pavement.