Preganglionic Autonomic Fibers

NERVE FIBERS which project from the central nervous system to AUTONOMIC GANGLIA. In the sympathetic division most preganglionic fibers originate with neurons in the intermediolateral column of the SPINAL CORD, exit via ventral roots from upper thoracic through lower lumbar segments, and project to the paravertebral ganglia; there they either terminate in SYNAPSES or continue through the SPLANCHNIC NERVES to the prevertebral ganglia. In the parasympathetic division the fibers originate in neurons of the BRAIN STEM and sacral spinal cord. In both divisions the principal transmitter is ACETYLCHOLINE but peptide cotransmitters may also be released.

Also Known As:

Autonomic Fibers, Preganglionic; Autonomic Fiber, Preganglionic; Fiber, Preganglionic Autonomic; Fibers, Preganglionic Autonomic; Preganglionic Autonomic Fiber

Nervous System
- Neurons
  - Cholinergic Neurons
    - Cholinergic Fibers
      - Preganglionic Autonomic Fibers
  - Nerve Fibers
    - Cholinergic Fibers
      - Preganglionic Autonomic Fibers
- Peripheral Nervous System
  - Autonomic Nervous System
    - Autonomic Pathways
      - Preganglionic Autonomic Fibers
  - Peripheral Nerves
    - Autonomic Pathways
      - Preganglionic Autonomic Fibers
Cells
- Neurons
  - Cholinergic Neurons
    - Cholinergic Fibers
      - Preganglionic Autonomic Fibers
  - Nerve Fibers
    - Cholinergic Fibers
      - Preganglionic Autonomic Fibers

Autonomic Pathways

Context: Research Results