What is a cerebral vascular attack (CVA)?

A cerebral vascular attack (CVA), also known as a stroke, occurs when there is a sudden interruption of blood flow to the brain. This interruption can lead to brain damage and loss of function, depending on the area of the brain affected and the duration of the blood flow disruption.

Understanding this concept is crucial in identifying the symptoms of a stroke and recognizing its urgency. The brain relies on a constant supply of oxygen-rich blood to function properly; thus, any break in this supply can result in serious consequences. Recognizing a CVA is vital because immediate medical intervention can significantly improve chances of recovery and reduce the risk of long-term disabilities.

The other choices address conditions that do not pertain to the definition of a CVA. An injury to the spinal cord refers to damage within the spine, a type of headache describes a common discomfort that does not involve a sudden interruption of blood flow, and weakness in arm muscles could be a symptom of a stroke, but it does not define what a CVA is.