innervation
Neural pathway distribution
Innervation is the supply of nerves to a body part or organ.
In anatomy and medicine, the term describes which nerves connect to which structures: The ulnar nerve provides innervation to the pinky finger.
A region's innervation determines its sensation and motor control.
The verb is innervate.
Neuron's signal-sending projection
- dendriteNeuron's input branch
- synapseNerve signal crossing point
- neuronImpulse-conducting cell
- myelinNerve fiber insulation
ganglion · motor · sensory · autonomic · somatic · peripheral · plexus · dermatome
Loss of nerve supply
- neuropathyDamage to peripheral nerves
- paralysisLoss of muscle function
- paresisPartial loss of movement
- atrophyWasting from disuse
numbness · tingling · weakness · neuralgia · radiculopathy · electromyography · neurological exam
Synaptic chemical messenger
- signalMessage-conveying cue
- impulseSudden urge to act
- action potentialNeuron's rapid electrical discharge
- conductionHeat transfer through contact
transmission · depolarization · excitation · inhibition · stimulus · response · reflex · activation
Allocation across recipients
- territoryLand under jurisdiction
- segmentalDivided into sections
- cutaneousRelating to skin
- muscularHaving well-developed sinews
visceral · muscle fiber · gland · blood vessel · organ · regional · bilateral · unilateral
axon
Neuron's signal-sending projection
myelin · ganglion · motor · sensory · autonomic · somatic · peripheral · plexus · dermatome · receptor
denervation
Loss of nerve supply
- neuropathyDamage to peripheral nerves
- paralysisLoss of muscle function
- paresisPartial loss of movement
atrophy · numbness · tingling · weakness · neuralgia · radiculopathy · electromyography · neurological exam
neurotransmitter
Synaptic chemical messenger
- signalMessage-conveying cue
- impulseSudden urge to act
- action potentialNeuron's rapid electrical discharge
conduction · transmission · depolarization · excitation · inhibition · stimulus · response · reflex · activation · firing
distribution
Allocation across recipients
muscular · visceral · muscle fiber · gland · blood vessel · organ · regional · bilateral · unilateral · ipsilateral
- Neuromuscularmotor neuron, motor cortex, motor control, acetylcholine, skeletal muscle
- material propertieshardness, elasticity, ductility, strength, durability
- muscle anatomymyosin, actin, muscle fibers, skeletal muscle, cardiac muscle
- cranial nerves
innervationdenervation
Loss of nerve supply
paralysis · nerve damage · nerve block · neurectomy · anesthesia
nerve, nervous, enervate, enervation, afferent, efferent, innervate, innervated