Which nervous system engages during mild, unpleasant stimulation?
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Answer: D. Sympathetic
Explanation
Mild or unpleasant environmental stimuli trigger the body's acute stress response mechanisms for self-protection. This protective mechanism is mediated by the rapid activation of the sympathetic branch of the autonomic nervous system. Option D is correct because unpleasant stimulation prompts sympathetic mobilization to handle potential threats. The sympathetic nervous system orchestrates rapid physiological adjustments to prepare the body for immediate physical action. Activation involves releasing catecholamines like adrenaline and noradrenaline from the adrenal glands into the bloodstream. This evolutionary adaptation helped ancestral humans survive sudden predators and environmental hazards effectively.
Option A is incorrect because the parasympathetic system manages resting, digestion, and energy conservation functions. Option B names the central nervous system, which includes the brain and spinal cord rather than autonomic branches. Option C is too broad because the peripheral nervous system encompasses both sympathetic and parasympathetic divisions.
- Subject
- Psychology
- Category
- Psychology
- Topic
- —
- Difficulty
- medium
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