- Sympathetic ganglion
Name = PAGENAME
Latin = g. sympathicum
Caption = Autonomic nervous system innervation, showing the
sympathetic(thoracolumbar) and parasympathetic(craniosacral) systems, in red and blue, respectively
Caption2 = Diagram of the course and branches of a typical
intercostal nerve. (Sympathetic ganglion visible at center top.)
DorlandsPre = g_02
DorlandsSuf = 12385047
Sympathetic ganglia are the ganglia of the
sympathetic nervous system. They deliver information to the body about stress and impending danger, and are responsible for the familiar fight-or-flight response. They contain approximately 20000–30000 nerve cell bodies and are located close to and on either side of the spinal cord in long chains.
ympathetic chain ganglia
The bilaterally symmetric
sympathetic chain ganglia, also called the paravertebral ganglia, are located just ventral and lateral to the spinal cord. The chain extends from the upper neck down to the coccyx, forming the unpaired coccygeal ganglion. Preganglionic nerves from the spinal cord synapseat one of the chain ganglia and the postganglionic fibre extends to an effector, typically a visceral organin the thoracic cavity.
Neurons of the
collateral ganglia, also called the prevertebral ganglia, receive input from the splanchnic nervesand innervate organs of the abdominaland pelvic region. These include the celiac ganglia, superior mesenteric ganglia, and inferior mesenteric ganglia.
* [http://microvet.arizona.edu/Courses/VSC401/autonomicNervous.html The Autonomic Nervous System] from the University of Arizona
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