What is the purpose of head rolls in emergency situations?

The purpose of head rolls in emergency situations is to cushion and support the head and neck of injured individuals. When a person is injured, especially in scenarios involving potential spinal injuries, maintaining proper stabilization of the head and neck is crucial. Head rolls are designed specifically for this function, ensuring that the head is adequately supported to prevent further injury or discomfort.

In contrast, the other options highlight uses that are not aligned with the primary function of head rolls. Supporting legs, providing comfort for responders, or serving as a rescue barrier do not relate to the specific need for head and neck stabilization in the context of emergency care. Proper use of head rolls can significantly contribute to the effective management of a patient's condition until they receive more advanced medical treatment.