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What type of neuron that detects bright light and provides high resolution color vision?
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What is the portion of the neuron that accepts incoming impulses?
The receptor is the part of the neuron (usually a dendrite) that detects a stimulus. Dendrites are extensions of the main cellular body of the neuron called the soma; the impulse is passed on to another neuron at the other end, which is called the axon. Neurons transmit impulses to each other via electro-chemical connections to each other that are known as synapses.
What occurs during the reflex arc.?
During a reflex arc, a sensory receptor detects a stimulus and sends a signal through a sensory neuron to the spinal cord. The spinal cord then processes the signal and sends a response through a motor neuron to an effector muscle or gland, causing a quick, involuntary reaction without the need for input from the brain.
Reflexes involve at least three neurons and all arcs through the spinal cord?
Reflexes involve a sensory neuron that detects a stimulus, an interneuron in the spinal cord that processes the information, and a motor neuron that sends the response signal to the muscle or gland. These three neurons work together in a reflex arc to produce a rapid and involuntary response to a stimulus.
What part of the neuron contains the cell nucleus provides nourshiments and decides whether or not to fire?
The cell body, or soma, of the neuron contains the cell nucleus which is responsible for regulating the cell's activities. It also integrates incoming signals and decides whether or not to generate an action potential, the electrical signal that travels down the neuron.
What connects sensory to motor neuron?
Interneurons(also called relay neuron, association neuron, connector neuron or local circuit neuron) are multipolar neurons that connects sensory neurons to motor neurons.
Structure at the end of a neuron that detects information?
receptor
When you touch something hot, a neuron in your finger senses the temperature. Which happens first?
an action potential moves along the neuron
What are the first and last elements in a spinal reflex?
The first element in a spinal reflex is the sensory receptor, which detects a stimulus. The last element is the effector, which carries out a response to the stimulus.
How does reflex occur?
This is what happens:a receptor detects a stimulus (change in the environment)a sensory neuron sends a signal to the relay neuronthe relay neuron sends the signal to the motor neuronthe motor neuron sends a signal to the affected partthe affected part produces a response
What is a Specialized area of sensory neuron that detects a specific stimulus?
A specialized area of sensory neuron that detects a specific stimulus is called a sensory receptor. These receptors are designed to respond to specific forms of stimulation, such as touch, light, or sound, and convert the energy from these stimuli into electrical signals that the nervous system can interpret.
A fiber tract that provides for communication between different parts of cns is called?
Neuron
What is the portion of the neuron that accepts incoming impulses?
The receptor is the part of the neuron (usually a dendrite) that detects a stimulus. Dendrites are extensions of the main cellular body of the neuron called the soma; the impulse is passed on to another neuron at the other end, which is called the axon. Neurons transmit impulses to each other via electro-chemical connections to each other that are known as synapses.
Mechanism of reflex arch?
A reflex arc is a neural pathway that controls a reflex action. It involves a sensory neuron that detects a stimulus, sends a signal to the spinal cord or brain, where it is processed, and then a motor neuron sends a signal back to muscles or glands to produce a response. This process allows for rapid, automatic responses to stimuli without conscious thought.
What is the flow of information in a spinal reflex arc in the correct order?
The flow of information in a spinal reflex arc occurs in the following order: sensory receptor detects a stimulus, sensory neuron carries the information to the spinal cord, interneuron processes the information in the spinal cord, motor neuron transmits the response to the effector (muscle or gland), and the effector produces a response.
What are the five parts of a reflex arc?
The five parts of a reflex arc are the receptor, sensory neuron, integration center, motor neuron, and effector. The receptor detects a stimulus, and the sensory neuron carries this information to the integration center. The integration center processes the information and sends a signal to the motor neuron, which then activates the effector to produce a response.
Describe the path an impulse would take for a reflex reaction?
When a sensory receptor detects a stimulus, an impulse is transmitted via a sensory neuron to the spinal cord. In the spinal cord, the impulse is processed and a response is generated, which is then sent via a motor neuron to the effector (muscle or gland) to carry out the reflex reaction. This entire pathway occurs rapidly and automatically without involvement of the brain.
What occurs during the reflex arc.?
During a reflex arc, a sensory receptor detects a stimulus and sends a signal through a sensory neuron to the spinal cord. The spinal cord then processes the signal and sends a response through a motor neuron to an effector muscle or gland, causing a quick, involuntary reaction without the need for input from the brain.
