The image displays notes on the sympathetic and parasympathetic nervous systems, highlighting their main differences. The sympathetic system originates in the intermediolateral nucleus (spinal cord segments T1-L3), has ganglia in paravertebral and prevertebral locations, shorter preganglionic fibers, and longer postganglionic fibers. It's designed for "fight or flight" responses, expending energy. The parasympathetic system stems from brain nuclei and the sacral parasympathetic nucleus, has terminal ganglia, longer preganglionic fibers, and shorter postganglionic fibers. It conserves energy and is located mainly in the head and visceral regions. Additionally, the notes detail the cranial nerves and their functions. in Shenyang City, China

Dec 5, 2025, 3:54 AM

Shenyang City, China

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Here are 5 descriptive tags for the content above: 1. Anatomy notes 2. Cranial nerves 3. Sympathetic vs. Parasympathetic 4. Medical study material 5. Tablet and handwritten notes

The image displays notes on the sympathetic and parasympathetic nervous systems, highlighting their main differences. The sympathetic system originates in the intermediolateral nucleus (spinal cord segments T1-L3), has ganglia in paravertebral and prevertebral locations, shorter preganglionic fibers, and longer postganglionic fibers. It's designed for "fight or flight" responses, expending energy. The parasympathetic system stems from brain nuclei and the sacral parasympathetic nucleus, has terminal ganglia, longer preganglionic fibers, and shorter postganglionic fibers. It conserves energy and is located mainly in the head and visceral regions. Additionally, the notes detail the cranial nerves and their functions.

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