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Encyclopedia > Autonomic ganglion

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Autonomic nervous system innervation, showing the sympathetic and parasympathetic (craniosacral) systems, in red and blue, respectively
Autonomic nervous system innervation, showing the sympathetic and parasympathetic (craniosacral) systems, in red and blue, respectively

Autonomic ganglia are clusters of neuronal cell bodies and their dendrites and are essentially a junction between autonomic nerves originating from the central nervous system and autonomic nerves innervating their target organs in the periphery. Image File history File links Download high resolution version (479x700, 74 KB)Sympathetic (red) and parasympathetic (blue) nervous system, from Grays Anatomy 1918 (public domain), at http://www. ... Image File history File links Download high resolution version (479x700, 74 KB)Sympathetic (red) and parasympathetic (blue) nervous system, from Grays Anatomy 1918 (public domain), at http://www. ... Drawing by Santiago Ramón y Cajal of cells in the pigeon cerebellum. ... Soma (Sanskrit), or Haoma (Avestan) (from Proto-Indo-Iranian *Sauma) was a ritual drink of importance among the early Indo-Iranians, and the later Vedic and Iranian cultures. ... A diagram showing the CNS: 1. ...

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Sympathetic ganglia

Ganglia of the sympathetic nervous system deliver information to the body about stress and impending danger, and evokes the familiar fight-or-flight response when activated. They contain approximately 20000 - 30000 nerve cell boides and are located close to and either side of the spinal cord in long chains. Grays FIG. 838– The right sympathetic chain and its connections with the thoracic, abdominal, and pelvic plexuses. ... Stress (roughly the opposite of relaxation) is a medical term for a wide range of strong external stimuli, both physiological and psychological, which can cause a physiological response called the general adaptation syndrome, first described in 1936 by Hans Selye in the journal Nature. ... The flight or fight response, also called the acute stress response, was first described by Walter Cannon. ...


Sympathetic chain ganglia

The sympathetic chain ganglia are located just anterior to the spinal cord. Preganglionic nerves from the central nervous system synapse at one of the chain ganglia and the postganglionic fiber extends to an effector, typically a visceral organ in the thoracic cavity. Cross-section through cervical spinal cord. ... A diagram showing the CNS: 1. ... Illustration of the major elements in a prototypical synapse. ... In mammalian anatomy, the viscera are the internal organs of the body, in particular the stomach and intestines. ... The thoracic cavity is the chamber of the human body (and other animal bodies) that is enclosed by the ribcage and the diaphragm. ...


Collateral ganglia

Neurons of the collateral ganglia, also called the prevertebral ganglia, receive input from the splanchnic nerves and innervate organs of the abdominal and pelvic region. These include the celiac ganglia, superior mesenteric ganglia, and inferior mesenteric ganglia. Collateral Ganglia lie between the sympathetic chain and the organ of supply. ... The splanchnic nerves are part of the autonomic nervous system. ... The abdomen (from the Latin word meaning belly) is the part of the body between the pelvis and the thorax. ... Human male pelvis, viewed from front Human female pelvis, viewed from front The pelvis is the bony structure located at the base of the spine (properly known as the caudal end). ...


Parasympathetic ganglia

Terminal ganglia

Terminal ganglia, or intramural ganglia, are so named because of their close proximity to effector organs and glands.


External links


  Results from FactBites:
 
Ganglion - Wikipedia, the free encyclopedia (187 words)
This is a dorsal root ganglion (DRG) from a chicken embryo (around stage of day 7) after incubation overnight in NGF growth medium stained with anti-neurofilament antibody.
In vertebrate anatomy, a ganglion is a tissue mass that contains the dendrites and cell bodies (or "somata") of nerve cells, in most case ones belonging to the peripheral nervous system.
In the autonomic nervous system, fibers from the CNS to the ganglion are known as preganglionic fibers, while those from the ganglion to the effector organ are called postganglionic fibers.
Autonomic ganglion - Wikipedia, the free encyclopedia (241 words)
Autonomic ganglia are clusters of neuronal cell bodies and their dendrites and are essentially a junction between autonomic nerves originating from the central nervous system and autonomic nerves innervating their target organs in the periphery.
Ganglia of the sympathetic nervous system deliver information to the body about stress and impending danger, and evokes the familiar fight-or-flight response when activated.
Terminal ganglia, or intramural ganglia, are so named because of their close proximity to effector organs and glands.
  More results at FactBites »

 

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