he ___ nervous system arises from a thoraco-lumbar origin.Group of answer choicessympatheticparasympathetic
Question
he ___ nervous system arises from a thoraco-lumbar origin.
Group of answer choices
- sympathetic
- parasympathetic
Solution
The correct answer is sympathetic.
Explanation
The sympathetic nervous system is one of the two branches of the autonomic nervous system. It originates from the thoracic and lumbar regions of the spinal cord, specifically from segments T1 to L2. Its primary function is to prepare the body for "fight or flight" responses during stressful situations. In contrast, the parasympathetic nervous system arises from the cranio-sacral regions and is responsible for "rest and digest" activities. Therefore, the sympathetic nervous system is correctly identified with a thoraco-lumbar origin.
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