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Neuron stimulus refers to any external or internal signal that causes a neuron to generate an action potential, leading to the transmission of electrical impulses. This stimulus can be in the form of chemical signals (like neurotransmitters), physical changes (like pressure or temperature), or electrical changes (like depolarization). When a neuron's threshold is reached, it triggers the opening of ion channels, resulting in a rapid change in membrane potential. This process is essential for communication within the nervous system and enables responses to various stimuli.
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How does a neuron indicate the strength of a stimulus?
A neuron conveys information about the strength of stimuli by varying the rate in which the stimulus is fired.
What neuron picks up a stimulus?
A sensory Neuron picks up the stimulus from the environment and changes it into a nerve impulse.
Which neurons decide about the action for a certain stimulus?
Sensory neuron
What is the stimulus-response pathway involving a sensory neuron and a motor neuron?
Please see:What_happens_at_the_level_of_the_neuron_starting_with_stimulus_and_ending_with_a_response
What happens at the level of the neuron starting with stimulus and ending with a response?
The stimulus is detected by the sensory receptor. The sensory receptor stimulates a sensory neuron. The sensory neuron transmits to the interneuron in the spinal cord. The interneuron stimulates a motor neuron. The motor neuron communicates to the muscle. The muscle(effector) then produces the response allowing the body to respond to the stimulus.
What makes a neuron receive a stimulus?
An interaction with the world.
The strong stimulus can increase the?
Number of times the neuron fires
What is the pathway a stimulus followed to produce a response?
the neuron pathway
When a stimulus acts on a neuron it decreases the permeability of the stimulated point of its membrane to sodium ions?
False( When a stimulus acts on a neuron, it increases the permeability of the stimulated point of its membrane to sodium ions. )
When a neuron receives a stimulus that is very strong?
When a neuron receives a very strong stimulus, it may reach its threshold potential and fire an action potential. This can lead to the release of neurotransmitters, sending a signal to other neurons. The strength of the stimulus can affect the frequency of action potentials generated by the neuron.
What stimulus below this intensity will result in no response in a neuron?
Any stimulus below the neuron's threshold potential will not result in a response, as it is not strong enough to generate an action potential. Neurons require a minimum level of stimulus intensity to reach the threshold potential and fire an action potential.
How is intensity of a stimulus represented in an individual neuron?
The intensity of a stimulus is represented in an individual neuron by the frequency of action potentials it generates. A stronger stimulus leads to a higher rate of firing, while a weaker stimulus results in fewer action potentials. This phenomenon is known as frequency coding, where the information about stimulus intensity is encoded in the number of spikes per unit time. Additionally, the neuron may also exhibit adaptation, whereby its response decreases over time despite a constant stimulus intensity.
