sympathetic general course Flashcards
where are the cell bodies of preganglionic fibers?
lateral horn of cord level T1-L2 or L3.
where do the preganglionic fibers exit cord?
anterior rootlets.
what do they follow after exiting the cord?
anterior primary rami.
where do preganglionic fiber go after exiting the anterior primary rami and how do they exit the rami?
they enter the sympathetic trunk via the white rammus comunicans.
what do most preganglionic fibers synapse on and where?
they synapse on postganglionic cell bodies in the sympathetic trunk.
those that dont synapse in the sympathetic trunk travel where?
through the sympathetic trunk to the splanchnic nerves to synapse in prevertebral plexuses associated with abdominopelvic viscera.
what do sympathetic preganglionic fibers release?
ACh.
