Nervous message - nerves sensing heat & mechanical movement

[Mohamad&Issa]

Nervous message -- nerves sensing heat & mechanical movement

As we know when we stimulate a nerve, there is a message form of electric nature.
But I want to ask how mechanical or heat or... stimulation is transformed into electric message?

 

[doub]

All messages are transmitted the same way through the nervous fibers. When the nerve fiber is stimulated it creates an action potential that travels along the nerve pathway, or depending on the structure will jump quickly along the nerve generating action potentials at the node of ranvier. The message then travels to the brain where it is interpreted and transformed into a message that our body understands. i.e. heat, movement, electrical stimulation. I hope that answers the question. Please let me know.

 

[berkeman]

As we know when we stimulate a nerve, there is a message form of electric nature.
But I want to ask how mechanical or heat or... stimulation is transformed into electric message?

The key web search term would be "sensory neurons":

http://en.wikipedia.org/wiki/Sensory_neuron

.

 

[Ygggdrasil]

The neurons responsible for sensing mechanical stimuli contain mechanosensitive ion channels that open and close in response to the mechanical deformation of the sensory neuron's membrane. The opening and closing of these channels will allow ions to cross the membrane, change the membrane potential of the neuron, and convert the mechanical sensation into an electrical signal.

Similarly temperature sensitive neurons contain temperature-sensitive ion channels whose opening and closing are modulated by temperature. These channels are primarily from the TRP family of ion channels.

While the molecules responsible for the sensation of mechanical and temperature stimuli have been identified, the molecular mechanisms by which they sense these stimuli is still unclear and is an active area of research.

 

[DeeNos]

Great question! The process of transforming mechanical or heat stimulation into an electric message is known as transduction. This is the conversion of one form of energy into another form that can be used by our nervous system. In the case of mechanical stimulation, such as touch or pressure, specialized nerve cells called mechanoreceptors detect the physical force and convert it into an electrical signal that can be transmitted to the brain. Similarly, for heat stimulation, specialized nerve cells called thermoreceptors detect changes in temperature and convert it into an electrical signal. These electrical signals are then transmitted through the nervous system to the brain, where they are interpreted and processed as sensations of touch or temperature. This process of transduction is essential for our nervous system to detect and respond to different types of stimuli in our environment.