nerve fibre
Impulse transmission pathway
A nerve fibre is the long, threadlike extension of a nerve cell that conducts electrical impulses.
Also called an axon.
Bundles of nerve fibres form the cables of the nervous system, transmitting signals between the brain, spinal cord, and body.
The spelling fibre is British; Americans write nerve fiber.
Neuron's signal-sending projection
- dendriteNeuron's input branch
- myelinNerve fiber insulation
- neuronImpulse-conducting cell
- synapseNerve signal crossing point
ganglion · neurite · node of Ranvier · myelin sheath · fascicle · white matter · grey matter · tract
Having fatty nerve coating
- unmyelinatedLacking nerve fiber coating
- sensoryRelated to perception
- motorEnergy-to-motion converter
- autonomicSelf-regulating without awareness
somatic · peripheral · central · sympathetic · parasympathetic · efferent · afferent · interneuron
Neuron's rapid electrical discharge
- impulseSudden urge to act
- conductionHeat transfer through contact
- neurotransmitterSynaptic chemical messenger
- depolarizationLoss of electrical gradient
repolarization · voltage-gated · saltatory conduction · excitability · threshold · refractory period · propagation · spike
Bodily or emotional distress
- touchPerceiving through physical contact
- temperatureMeasured heat intensity
- pressureForce upon contact
- itchUrge to scratch
tingling · numbness · receptor · mechanoreceptor · thermoreceptor · proprioception · sensory · paresthesia
Damage to peripheral nerves
- demyelinationNerve sheath degradation
- multiple sclerosisAutoimmune demyelinating neurological disease
- Guillain-BarréAutoimmune peripheral neuropathy
- neuralgiaSharp pain from irritated nerves
degeneration · regeneration · neuritis · compression · entrapment · lesion · atrophy · Charcot-Marie-Tooth
axon
Neuron's signal-sending projection
synapse · ganglion · neurite · node of Ranvier · myelin sheath · fascicle · white matter · grey matter · tract · afferent
myelinated
Having fatty nerve coating
- unmyelinatedLacking nerve fiber coating
- sensoryRelated to perception
- motorEnergy-to-motion converter
autonomic · somatic · peripheral · central · sympathetic · parasympathetic · efferent · afferent · interneuron
action potential
Neuron's rapid electrical discharge
- impulseSudden urge to act
- conductionHeat transfer through contact
- neurotransmitterSynaptic chemical messenger
depolarization · repolarization · voltage-gated · saltatory conduction · excitability · threshold · refractory period · propagation · spike
pain
Bodily or emotional distress
- touchPerceiving through physical contact
- temperatureMeasured heat intensity
- pressureForce upon contact
itch · tingling · numbness · receptor · mechanoreceptor · thermoreceptor · proprioception · sensory · paresthesia · hypersensitivity
neuropathy
Damage to peripheral nerves
- demyelinationNerve sheath degradation
- multiple sclerosisAutoimmune demyelinating neurological disease
- Guillain-BarréAutoimmune peripheral neuropathy
neuralgia · degeneration · regeneration · neuritis · compression · entrapment · lesion · atrophy · Charcot-Marie-Tooth · sclerosis