The upper nerve supply arrives from cell bodies at the levels of T5-T9, leaves the sympathetic chain by the least splanchic nerve arises from T12 and leaves the sympathetic chain to synapse at the " renal plexus ."
12.
If someone has impaired sweating above the waist affecting only one side of the body, yet they do not have a clinically apparent Horner's syndrome, then the lesion is just below the stellate ganglion in the sympathetic chain.
13.
In elegant experiments in the dog, where the sympathetic chain was cut at the level of the diaphragm, Jackson showed that there was no direct sympathetic innervation to the lung, but that bronchoconstriction was reversed by release of epinephrine from the adrenal medulla.
14.
Peripheral sensory cell > Preganglionic cell > Dorsal root ganglia cell in the " Sympathetic chain " > Ventral root ganglia cell in the " sympathetic chain " > Post-ganglionic cell that activates an organ such as the pancreas ( or a muscle ).
15.
Peripheral sensory cell > Preganglionic cell > Dorsal root ganglia cell in the " Sympathetic chain " > Ventral root ganglia cell in the " sympathetic chain " > Post-ganglionic cell that activates an organ such as the pancreas ( or a muscle ).
16.
The lateral grey column receives input signals from preganglionic, myelinated fibers from viscera ( internal organs ), which course through prevertebral ganglia ( between the visceral organ and the sympathetic chain ) and paravertebral ganglia ( in the sympathetic chain ), white rami communicantes, and dorsal roots to synapse on cells of the intermediolateral cell column in the lateral horn.
17.
The lateral grey column receives input signals from preganglionic, myelinated fibers from viscera ( internal organs ), which course through prevertebral ganglia ( between the visceral organ and the sympathetic chain ) and paravertebral ganglia ( in the sympathetic chain ), white rami communicantes, and dorsal roots to synapse on cells of the intermediolateral cell column in the lateral horn.
