Question

When a large snarling dog threatened Daniel during his regular morning jog, he experienced the classic symptoms of the fight-or-flight response. According to Walter Cannon, Daniel's response to this acute level of stress involves both:

Answer 1

Daniel's reaction to the snarling dog, known as the fight-or-flight response, involves the activation of the sympathetic nervous system and the endocrine system, preparing the body to confront or flee from the threat.

Step-by-step explanation:

When Daniel encountered a snarling dog during his jog, he experienced what Walter Cannon described as the fight-or-flight response. This physiological reaction involves the activation of both the sympathetic nervous system and the endocrine system. The body releases adrenaline and noradrenaline, resulting in symptoms like dilated pupils, increased heart rate, heavy breathing, perspiration, and tense muscles. These responses prepare an individual to either confront or escape from an imminent threat. This reaction is an evolutionary adaptation that helps in survival, although in modern times it's often triggered by psychological stress, not just physical danger, which can lead to negative health effects if experienced frequently.