Traumatic brain injury (TBI) is ABI caused by external mechanisms such as head impact, violent head movement, falls, motor vehicle accidents, or sports injuries.

Traumatic brain injury (TBI) is ABI caused by external mechanisms such as head impact, violent head movement, falls, motor vehicle accidents, or sports injuries.

• A. ABI caused by external mechanisms such as head impact, violent head movement, falls, motor vehicle accidents, or sports injuries.
• B. ABI caused by internal metabolic processes.
• C. Brain injury due to infection.
• D. Brain injury due to genetic conditions.

Answer: (A)

Traumatic brain injury is a brain injury acquired after birth that results from external mechanical forces acting on the head—such as a blow to the head, a violent head movement, a fall, a vehicle crash, or a sports-related impact. This external mechanism is what differentiates TBI from other brain injuries that occur due to internal, non-mechanical processes. The examples listed illustrate external causes that physically disrupt brain tissue, potentially producing a range of injury severities from concussion to severe brain damage. In contrast, injuries caused by internal metabolic problems, infections, or genetic conditions arise from non-external factors and are not considered traumatic brain injuries.

Traumatic brain injury is a brain injury acquired after birth that results from external mechanical forces acting on the head—such as a blow to the head, a violent head movement, a fall, a vehicle crash, or a sports-related impact. This external mechanism is what differentiates TBI from other brain injuries that occur due to internal, non-mechanical processes. The examples listed illustrate external causes that physically disrupt brain tissue, potentially producing a range of injury severities from concussion to severe brain damage. In contrast, injuries caused by internal metabolic problems, infections, or genetic conditions arise from non-external factors and are not considered traumatic brain injuries.