Which term best describes a slight and transient brain injury that often results in temporary cognitive impairment but no permanent structural damage?

• A. Concussion
• B. Stroke
• C. Chronic traumatic encephalopathy
• D. Contusion

Answer: (A)

Verified step by step guidance

1. Step 1: Understand the key characteristics described in the problem: a slight and transient brain injury, temporary cognitive impairment, and no permanent structural damage.
2. Step 2: Review the definitions of each term: 'Concussion' is a mild traumatic brain injury causing temporary symptoms; 'Stroke' involves a sudden loss of brain function due to blood flow interruption; 'Chronic traumatic encephalopathy' is a progressive degenerative brain disease from repeated trauma; 'Contusion' is a bruise on the brain involving structural damage.
3. Step 3: Compare the characteristics of each term with the problem description, focusing on the severity, duration, and permanence of the injury.
4. Step 4: Identify that the term matching a mild, temporary brain injury without permanent damage is 'Concussion'.
5. Step 5: Conclude that 'Concussion' best fits the description given in the problem.