Category: G

Blocking of the transmission of stimuli in autonomic ganglia. Pharmacologically, this is done by using drugs that occupy receptor sites for acetylcholine and by stabilizing the postsynaptic membranes against the actions of acetylcholine liberated from presynaptic nerve endings. The usual effects of drugs that cause ganglionic blockade are vasodilatation of arterioles with increased peripheral blood…

A neuroma containing ganglion cells. A ganglioneuroma is a neoplasm consisting of fully developed nerve cells, forming a tumor.  

Having or consisting of ganglia.  

A ganglion on the pars intermedia, the sensory root of the facial nerve. It lies in the anterior border of the anterior geniculum of the facial nerve.  

A tumor of neural or neuroectodermal origin.  

Ganglion cells, glia cells, and nerve fibers in a nerve tumor.  

Any radiological technique that relies on the detection of gamma particle-emitting radionuclides. Examples of gamma scans are bone scans, gallium scans, and positron emission tomography scans.  

A small nerve originating in the anterior horns of the spinal cord that transmits impulses through type A gamma fibers to intrafusal fibers of the muscle spindle for muscle control.  

Radiosurgery that can destroy an intracranial target by directing gamma radiation at the lesion, while attempting to spare adjacent healthy tissue. The gamma knife consists of 201 cylindrical gamma ray (cobalt 60) beams designed to intersect at the target lesion, resulting in about 200 times the dose of any single beam aimed at the periphery.…

A central nervous system depressant used in some countries as an anesthetic agent. It has no approved use in the U.S., where it is sometimes abused as an illicit drug. Its street names include grievous bodily harm, liquid ecstasy, and organic quaalude.