Which term refers to a brain injury caused by a blow to the head?

• A. Sprain
• B. Concussion
• C. Fracture
• D. Dislocation

Answer: (B)

When a head is struck, the brain injury you’re dealing with is a concussion. It happens because the impact causes the brain to shift inside the skull, briefly disrupting normal brain function. That disruption can show up as confusion, memory gaps, headache, dizziness, nausea, or sensitivity to light or noise, and sometimes changes in mood or balance. The important point is that it’s a brain injury linked to head trauma, not a problem with bones or joints. By contrast, sprains involve ligaments, fractures are broken bones, and dislocations are joints that have moved out of place. In sports, this means recognizing that a concussion is about temporary brain impairment, taking the hit seriously, removing the athlete from play, and following a proper medical evaluation and gradual return-to-play process.