- published: 09 Jul 2013
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In anatomy, a ganglion ( /ˈɡæŋɡliən/ GANG-glee-ən; plural ganglia) is a biological tissue mass, most commonly a mass of nerve cell bodies. Cells found in a ganglion are called ganglion cells, though this term is also sometimes used to refer specifically to retinal ganglion cells.
A less common usage of ganglion is ganglion cyst, a small lump most commonly on the hand or foot, not believed to be of nerve cells.
In neurological contexts, ganglia are composed mainly of somata and dendritic structures which are bundled or connected together. Ganglia often interconnect with other ganglia to form a complex system of ganglia known as a plexus. Ganglia provide relay points and intermediary connections between different neurological structures in the body, such as the peripheral and central nervous systems.
There are two major groups of ganglia:
In the autonomic nervous system, fibers from the central nervous system to the ganglia are known as preganglionic fibers, while those from the ganglia to the effector organ are called postganglionic fibers.
Actors: Michel Aumont (actor), Marc Berman (actor), Didier Bénureau (actor), François Cluzet (actor), André Wilms (actor), Sandrine Kiberlain (actress), Isabelle Nanty (actress), Alexandre Desplat (composer), Valérie Lemercier (actress), Serge Meynard (writer), Serge Meynard (director), Gérard Victor (actor), Daniel Delume (producer), Sarah Bertrand (actress), Patrick Pittavino (miscellaneous crew),
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