ganglion
Neural cell mass
A ganglion is a cluster of nerve cells outside the brain and spinal cord, serving as a relay point in the nervous system.
The plural is ganglia or ganglions.
In medicine, a ganglion is also a fluid-filled cyst that forms near joints or tendons, especially on the wrist: The doctor drained the ganglion on her hand.
Figuratively, a ganglion can be any center of activity or energy.
Impulse-conducting cell
- synapseNerve signal crossing point
- axonNeuron's signal-sending projection
- dendriteNeuron's input branch
- somaBodily cells, excluding gametes
nerve · plexus · sensory · autonomic · peripheral · dorsal · root · basal
Hand-forearm connection
- tendonMuscle-to-bone connector
- synovialOf joint membranes
- fluidSubstance that flows
- jointShared by multiple parties
aspiration · lump · bump · benign · dorsal · volar · mucous · excision
neuron
Impulse-conducting cell
- synapseNerve signal crossing point
- axonNeuron's signal-sending projection
- dendriteNeuron's input branch
soma · nerve · plexus · sensory · autonomic · peripheral · dorsal · root · basal · sympathetic
wrist
Hand-forearm connection
joint · aspiration · lump · bump · benign · dorsal · volar · mucous · excision · recurrence
hub
Central connection point
center · junction · interconnection · web · nucleus · focal · point · convergence · relay · switchboard
photoreceptor
Cell responding to light
visual · fovea · receptive · field · eye · rod · cone · horizontal · inner · layer
ganglioncentral nervous system
Brain plus spinal cord
brain · spinal cord · CNS · cerebral cortex · brainstem
ganglionnerve fiber
Signal-conducting neural extension
axon · white matter · neural pathway · neurite · dendrite
- dorsal root gangliaSensory neuron cell clusters
- dorsal root ganglionSensory nerve cell cluster
- basal gangliaSubcortical motor-control nuclei
- ganglion cystBenign joint fluid sac