The branch of the autonomic nervous system that induces the "flight or fight" response is the:
Correct answer: A. Sympathetic
- A. Sympathetic
- B. Parasympathetic
- C. Vagus nerve
- D. Somatic nerve
Explanation
The sympathetic nervous system initiates the "fight or flight" response by releasing adrenaline and noradrenaline into the bloodstream, triggering physiological changes that prepare the body to confront or flee from perceived threats. These changes include increased heart rate, dilation of airways, heightened alertness, and redirection of blood flow to muscles, enabling swift and vigorous responses to potential danger. This adaptive response evolved to enhance survival in threatening situations by mobilizing energy and resources for immediate action.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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