Final answer:
A transient ischemic attack (TIA) is a temporary disruption in blood flow to the brain, resulting in neurological symptoms that go away within 24 hours after normal blood flow is re-established.
Step-by-step explanation:
A transient ischemic attack (TIA), often referred to as a mini-stroke, is a temporary loss of neurological function caused by a brief interruption in blood flow to the brain. Symptoms of a TIA occur rapidly but last a short time, typically resolving within 24 hours. TIAs do not cause permanent cell death in the brain; therefore, when adequate blood flow is restored, neurological function returns to normal. Prompt medical treatment is crucial for recovery, and the mnemonic FAST (Face, Arms, Speech, and Time) can help identify a TIA or stroke.