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Which neurons decide about the action for a certain stimulus?
Sensory neuron
What process describes the conversion of an external stimulus to an internal action potential?
The process is known as sensory transduction. It involves converting an external stimulus, such as light or sound, into an electrical signal (action potential) in sensory neurons. This electrical signal is then transmitted to the brain for further processing and interpretation.
What transmission of the depolarization wave along the neurons membrane?
Action potential
What does receptor potentials cause?
Receptor potentials are graded changes in the membrane potential of sensory receptors in response to stimuli. When a receptor potential is generated, it can lead to the generation of action potentials in sensory neurons if the depolarization reaches a certain threshold. This conversion of receptor potential to action potentials allows the nervous system to transmit sensory information to the brain for processing and perception. Ultimately, receptor potentials play a crucial role in the sensory transduction process, enabling the body to respond to environmental changes.
What sensory neurons to motor neurons?
Sensory neurons (afferent neurons) send sensory signals from the body to the Central Nervous System. Their cell bodies are always found in a ganglion outside the central nervous system. Motor neurons (efferent neurons) send signals from the central nervous system to the muscles and glands of the body. Their cell bodies are always located in the central nervous system.
Which neurons decide about the action for a certain stimulus?
Sensory neuron
What process describes the conversion of an external stimulus to an internal action potential?
The process is known as sensory transduction. It involves converting an external stimulus, such as light or sound, into an electrical signal (action potential) in sensory neurons. This electrical signal is then transmitted to the brain for further processing and interpretation.
What transmission of the depolarization wave along the neurons membrane?
Action potential
Which cell conducts an action potential?
neurons
What are the three types of neurone involved in a reflex action?
The three types of neurons are sensory(afferant) neurons, interneurons, and motor(efferant) neurons. Sensory, or afferent, neurons send information from the receptor to the central nervouse system. Interneurons, found only in the central nervous system, play the role of interpretting the impulse. The motor, or efferent, neurons send the information from the central nervous system to the effector. Receptor->sensory neuron->interneuron->motor neuron->effector.
What are relay neurons?
An interneuron (also called relay neuron, association neuron, connector neuron or local circuit neuron) is a neuron that forms a connection between other neurons. Interneurons are neither motor nor sensory.
How do sensory neurons and motor neurons act in opposite ways?
Sensory neurons transmit signals from sensory receptors towards the central nervous system to detect external stimuli, while motor neurons transmit signals from the central nervous system to muscles and glands to initiate a response or action. In this way, sensory neurons bring information in and motor neurons send information out to carry out a response.
Where are the generator potentials generated?
Generator potentials are primarily generated in sensory receptors, which are specialized cells located in various parts of the body, such as the skin, muscles, and sensory organs. When these receptors detect a stimulus (like light, sound, or pressure), they undergo a change in membrane potential, creating a generator potential. If this potential reaches a certain threshold, it can trigger an action potential that propagates along sensory neurons to the central nervous system for processing.
What is usually the sites of the initial action potential in neurons?
Axon hillocks
What sensory neurons to motor neurons?
Sensory neurons (afferent neurons) send sensory signals from the body to the Central Nervous System. Their cell bodies are always found in a ganglion outside the central nervous system. Motor neurons (efferent neurons) send signals from the central nervous system to the muscles and glands of the body. Their cell bodies are always located in the central nervous system.
What functional differences are there among sensory motor and associative neurons?
Sensory neurons are specialized to translate many forms of input (light waves, sound waves, tissue displacement, molecules suspended in air or dissolved in saliva, and so on) into action potentials. Motor neurons carry commands to glands and muscles. Association neurons have neither specific sensory nor motor functions, but rather form bridges between the sensory and motor neurons.
What are the key factors that influence the generation and propagation of action potential in neurons?
The key factors that influence the generation and propagation of action potential in neurons are the balance of ions inside and outside the cell, the opening and closing of ion channels, and the threshold level of stimulation needed to trigger an action potential.
