Which term refers to sudden loss of consciousness, sensation, and voluntary motion caused by rupture or obstruction of a brain blood vessel?

• A. Myocardial Infarction
• B. Stroke
• C. Metabolic Syndrome
• D. Bacillus

Answer: (B)

Disruption of blood flow to the brain from a ruptured or blocked vessel leads to an abrupt neurologic deficit—loss of consciousness, sensation, and the ability to move—that defines a stroke. This term covers both types: ischemic stroke from a blocked artery and hemorrhagic stroke from vessel rupture, which explains the sudden loss of brain function described. The other terms don’t fit: a myocardial infarction is a heart attack, metabolic syndrome is a cluster of metabolic risk factors, and Bacillus is a bacterial genus.