Question

Which system has long preganglionic axons and therefore ganglia that are relatively far from the central nervous system?

Answer 1

The system that has long preganglionic axons and ganglia that are relatively far from the central nervous system is the sympathetic division of the autonomic nervous system (ANS).

In the sympathetic division, the preganglionic neurons have relatively long axons that extend from the spinal cord to sympathetic ganglia, which are located closer to the spinal cord but farther from the target organs they innervate. This arrangement allows for rapid and widespread activation of the sympathetic system during the "fight or flight" response.

Answer 2

The sympathetic nervous system has long preganglionic axons and ganglia that are relatively far from the central nervous system.

Step-by-step explanation:

The system that has long preganglionic axons and ganglia that are relatively far from the central nervous system is the sympathetic nervous system. In this system, the preganglionic fibers originate from the lateral horn of the thoracolumbar spinal cord. They project through the ventral spinal nerve root and spinal nerve to reach the sympathetic ganglia, which can be located in the sympathetic chain ganglia or other collateral locations. Postganglionic fibers, which are longer than preganglionic fibers, then project from the ganglia to target effectors and release norepinephrine to elicit physiological changes in those organs.