Final answer:
The description exemplifies the fight-or-flight response, a physiological reaction to perceived threat, characterized by changes in heart rate, blood pressure, and body temperature.
Step-by-step explanation:
This description exemplifies the fight-or-flight response, which is a physiological reaction that occurs when a person experiences strong emotions, especially those associated with a perceived threat. The fight-or-flight response is characterized by an increase in heart rate, blood pressure, body temperature, and other physical changes that prepare the body for action. This response is controlled by the autonomic nervous system and the release of hormones like adrenaline.