True or False: TBI is caused by traumatic brain injury due to impact to the head or rapid movement of the brain.

The assertion is accurate because traumatic brain injury (TBI) occurs as a result of external forces impacting the head or causing a rapid movement of the brain within the skull. Such impacts can lead to various forms of injury, including concussions, contusions, and diffuse axonal injuries, depending on the severity and nature of the force applied.

In the context of TBI, "traumatic" specifically refers to the injury resulting from an external event, distinguishing it from other brain injuries that may arise from non-traumatic causes, such as medical conditions or diseases. The definition encompasses both direct hits to the head and the effects of violent motion that can disrupt normal brain function, further validating the claim that TBI results from these specific types of trauma. This understanding of TBI is fundamental for identifying, treating, and managing the condition in medical and first responder scenarios.