nerve end
Noun: * The terminal structure of an axon that does not end at a synapse. A nerve end is the specialized ending of a nerve fiber (axon) responsible for either receiving sensory information from the environment (as in sensory receptors) or transmitting signals to muscles or glands (as in motor endings).
The term "nerve end" is used in biological and medical contexts to describe the anatomical endpoint of a neuron's axon. It is a specific structure, distinct from a synapse, which is the junction between two neurons.
Examples: * The nerve ends in your fingertips are highly sensitive to touch and temperature. * Damage to the motor nerve ends can result in muscle weakness. * Scientists are studying how sensory nerve ends convert physical stimuli into electrical signals.
- Free nerve ending: A common type of sensory nerve end that is not encapsulated by other structures and is involved in sensing pain, temperature, and crude touch.
- Free nerve endings throughout the skin alert the body to potential harm.
- Nerve ending: This is a more common and functionally equivalent term. "Nerve end" and "nerve ending" are often used interchangeably in general contexts, though "nerve ending" is more frequent.
- Terminal bouton: Refers specifically to the swollen tip of an axon terminal that forms part of a synapse, which is a related but distinct structure from a "nerve end" as defined.
- Sensory receptor: A structure that includes a sensory nerve end and may include accessory cells; it is specialized to respond to specific stimuli.
- Neurite terminal
- Axon terminal (in a broader, non-synaptic context)
- Exposed nerve end: Often used to describe a cause of acute pain, typically from injury.
- The dental procedure left an exposed nerve end, causing severe sensitivity.
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the terminal structure of an axon that does not end at a synapse
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