Which term describes violent shaking up or jarring of the brain?

• A. Sunscreen
• B. Seatbelt
• C. Concussion
• D. Acne

Answer: (C)

The idea being tested is recognizing a brain injury caused by a blow or jolt. The term described is concussion: a traumatic brain injury that happens when the brain is violently shaken inside the skull due to an impact or a rapid change in motion. This shaking can disrupt brain function, leading to symptoms like headache, confusion, dizziness, memory problems, balance issues, nausea, sensitivity to light or sound, or even temporary loss of consciousness. It often occurs in sports, falls, or car crashes, and requires careful assessment and typically a period of rest before returning to activity.

Other terms don’t fit because they describe something unrelated to brain injury: sunscreen protects the skin from UV rays, a seatbelt is a safety device that restrains you in a vehicle, and acne is a skin condition with clogged pores.