(redirected from ganglionic)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to ganglionic: ganglionic cyst, Ganglion cells


see nervous systemnervous system,
network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of the animal kingdom have at least a rudimentary nervous system.
..... Click the link for more information.



an anatomically isolated cluster of nerve cells (neurons), nerve fibers, and tissues, found in many invertebrates, all vertebrates, and man. In vertebrates, ganglia are located along the nerve stems.

Intervertebral ganglia, ganglia near the vertebrae, prevertebral ganglia, and ganglia enclosed in the thickness of the walls of the internal organs are topographically distinguished from each other. The intervertebral ganglia and similar ganglia are made up of sensory pseudo-unipolar neurons. Other ganglia are part of the peripheral sector of the autonomous nervous system and are mainly clusters of effector multipolar autonomous neurons, including sensory and association neurons. The clusters of neurons in each ganglion are surrounded by a layer of satellite cells, outside of which there is a thin capsule of connective tissue. Between the groups of neurons there are thicker connective tissue layers forming the connective tissue base, or stroma, of the ganglion. On the outside the ganglion is covered by a fibrous capsule, from which blood vessels reach the ganglion by way of the connective tissue layers. The synapses (nerve fibers that form the end, or terminal, contacts) lead to the bodies and branches of the autonomic neurons. In invertebrates, the ganglia arecoordinating centers carrying out the functions of a central nervous system. By means of reciprocal connections the ganglia in invertebrates form a single system that corresponds in its arrangement to the overall structure of their bodies.



A group of nerve cell bodies, usually located outside the brain and spinal cord.


1. an encapsulated collection of nerve-cell bodies, usually located outside the brain and spinal cord
2. a cystic tumour on a tendon sheath or joint capsule
References in periodicals archive ?
Based on the histologic examination, a diagnosis of left CPA ganglionic hamartoma was established (figure 2).
Completely thoracoscopic pulmonary vein isolation with ganglionic plexus ablation and left atrial appendage amputation for treatment of atrial fibrillation.
Another co-author of the Neuron study, UCSF researcher John Rubenstein, PhD, has made major progress in identifying molecules that can be manipulated to lead an embryonic stem cell to go through developmental stages that cause it to acquire the properties of GABA neurons that derive from the medial ganglionic eminence.
We have successfully used SSH to identify ganglionic ESTs from the tropical abalone H.
The variable proportions of the facial nerve ganglionic mass reflect genetically programmed levels of different neurotrophic substances that guide the formation of neural systems during their development.
Chapters focusing on the framework for normal basal ganglionic function provide background to the dynamics of the basal ganglia and explore the functional significance of the striatum and its "direct" connectivity to output nuclei of the basal ganglia, the "indirect" pathways from striatum to basal ganglia output nuclei and their relation to the "direct" pathway, and theories of basal ganglionic function.
8) Despite the advances that occurred with the availability of reserpine, veratum derivatives, ganglionic blocking agents, hydralazine, thiocyanates, and monamine oxidase inhibitors in the 1950s, which were able to lower BP and reverse the changes of malignant hypertension, the adverse effects that were often seen, especially when these BP-lowering agents were used in combination, limited the effective control of hypertension.
atypical parkinsonism (progressive supranuclear palsy, corticobasal ganglionic degeneration), idiopathic dopa-responsive PD, multiple sclerosis/leukodystrophies, other white matter diseases, and motor neuron disease.
Parkinson's Syndromes and Their Underlying Pathophysiology Protein Mutation Parkinson's Syndrome [alpha]-synuclein Parkinson's disease Diffuse Lewy Body disease Tau Fronto-temporal dementia Supranuclear palsy Cortico-basal ganglionic degneration Amyloid and Tau Alzheimer's disease
Functional nicotinic acetylcholine receptors that mediate ganglionic transmission in cardiac parasympathetic neurons.
Paul Albert Roitsch, 78, of Greenwich, CT, died on December 8, from corticobasal ganglionic degeneration (CBGD), a rare neurological disorder.