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O que (quem) é Ganglion - definição
NERVE CELL CLUSTER OR A GROUP OF NERVE CELL BODIES LOCATED IN THE AUTONOMIC NERVOUS SYSTEM AND SENSORY SYSTEM; GANGLIA HOUSE THE CELLS BODIES OF AFFERENT NERVES AND EFFERENT NERVES
Ganglia; Preganglionic cell; Gangleon; Preganglionic neurons; Postgangionic; Ganglioid; Semibrain; Ganglionic; Pseudoganglion; Ganglium; Pseudoganglia
Ganglion
·noun A node, or gland in the lymphatic system; as, a lymphatic ganglion.
II. Ganglion ·noun A mass or knot of nervous matter, including nerve cells, usually forming an enlargement in the course of a nerve.
III. Ganglion ·noun A globular, hard, indolent tumor, situated somewhere on a tendon, and commonly formed by the effusion of a viscid fluid into it;
- called also weeping sinew.
ganglion
['ga?gl??n]
¦ noun (plural ganglia or ganglions)
1. Anatomy a structure containing a number of nerve cells, often forming a swelling on a nerve fibre.
a well-defined mass of grey matter within the central nervous system.
2. Medicine an abnormal benign swelling on a tendon sheath.
Derivatives
ganglionic adjective
Origin
C17: from Gk ganglion 'tumour on or near sinews or tendons'.
Ganglion
A ganglion is a group of neuron cell bodies in the peripheral nervous system. In the somatic nervous system this includes dorsal root ganglia and trigeminal ganglia among a few others.
Wikipédia
Ganglion
A ganglion is a group of neuron cell bodies in the peripheral nervous system. In the somatic nervous system this includes dorsal root ganglia and trigeminal ganglia among a few others. In the autonomic nervous system there are both sympathetic and parasympathetic ganglia which contain the cell bodies of postganglionic sympathetic and parasympathetic neurons respectively.
A pseudoganglion looks like a ganglion, but only has nerve fibers and has no nerve cell bodies.
Exemplos do corpo de texto para Ganglion
1. She isolated a permanent, transformed rat Retinal Ganglion Cell (RGC) culture to study how the eye‘s retinal cells die.
2. The planned surgery involves planting a three–millimetre solar–powered microchip near the ganglion cell layer of the retina.
3. The death of retinal ganglion cells by a process called "apoptosis" causes damage to the optic nerve and prevents connections with the brain required for sight, resulting in blindness.
4. Then, paediatric surgeon Dr V M Reges saw biopsy reports and realized an ileostomy was not needed at all. ‘‘Hirschsprung’s Disease occurs when the large intestine lacks ganglion cells at its end, causing it to contract and block the passage of stools out of it,’’ said Rege.