Everything about Ganglia totally explained
In
anatomy, a
ganglion (pl. ganglia
) is a
tissue mass.
Neurology
In neurological contexts, ganglia are composed mainly of
somata and
dendritic structures that 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.
Basal ganglia
The term "ganglion" usually refers to the
peripheral nervous system.
However, in the brain (part of the
central nervous system), the "
basal ganglia" is a group of nuclei interconnected with the
cerebral cortex,
thalamus and
brainstem, associated with a variety of functions: motor control, cognition, emotions and learning.
Partly due to this ambiguity, the
Terminologia Anatomica recommends using the term "basal nuclei" instead of "basal ganglia".
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Further Information
Get more info on 'Ganglia'.
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