nerve ending
Touch signal source
A nerve ending is the terminal point of a nerve fiber where it receives or transmits signals.
Sensory nerve endings detect stimuli like pressure, temperature, and pain: The nerve endings in your fingertips are extremely sensitive.
Nerve endings cluster densely in some areas and sparsely in others, which is why a paper cut hurts more than a scraped knee.
Sensory cell for pressure
- thermoreceptorNeuron sensing temperature changes
- chemoreceptorSensory unit detecting chemicals
- photoreceptorCell responding to light
- proprioceptorSensory receptor detecting position
baroreceptor · transduction · stimulus · threshold · adaptation
Neuron's signal-sending projection
- dendriteNeuron's input branch
- synapseNerve signal crossing point
- neuronImpulse-conducting cell
- myelinNerve fiber insulation
soma · ganglion · node of Ranvier · astrocyte · afferent · efferent · motor neuron · interneuron
Terminal phalanx pad
- tactileOf the touching sense
- textureSurface tactile quality
- pressureForce upon contact
- skinBody's outer layer
epidermis · dermis · palpation · contact · sensitivity · gentle · feather · massage
Persistent dull discomfort
tenderness · soreness · sharp pain · dull pain · radiating pain · chronic pain · acute pain · neuralgia
mechanoreceptor
Sensory cell for pressure
- thermoreceptorNeuron sensing temperature changes
- chemoreceptorSensory unit detecting chemicals
- photoreceptorCell responding to light
proprioceptor · baroreceptor · transduction · stimulus · threshold · adaptation
axon
Neuron's signal-sending projection
myelin · soma · ganglion · node of Ranvier · astrocyte · afferent · efferent · motor neuron · interneuron · neural tissue
fingertip
Terminal phalanx pad
skin · epidermis · dermis · palpation · contact · sensitivity · gentle · feather · massage · caress
ache
Persistent dull discomfort
twinge · tenderness · soreness · sharp pain · dull pain · radiating pain · chronic pain · acute pain · neuralgia · neuropathic
tingle
Slight stinging sensation
- prickleTiny sharp point
- numbnessLoss of sensation
- sensitivityResponsiveness to stimuli
burning · stinging · tickling · itch · warmth · coolness · pressure · vibration · sharpness · dullness
- Dermis componentscollagen, elastin, fibroblasts, blood vessel, sweat gland
- sensessight, smell, taste, hearing, touch
- skin and hairskin, hair, dermis, epidermis, pore
- nervous systembrain, neurons, spinal cord, axon, dendrite
- neuroscienceneuron, MRI, brain, neurons, synapses
- Neurophysiologyneuron, action potential, neurotransmitter, presynaptic, depolarization
nerve endingbrain
Seat of cognition
central nervous system · spinal cord · cerebral cortex · nerve center · nerve root
nerve endingsensory cortex
Brain area processing senses
processing center · motor cortex · brain · central processor · command center
nerve, nervous, ending, nerves, nervy, nerved, nerveless, unnerved, unnerving