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A second order neuron is the 2nd neuron to carry an order. The order could be a sensory stimulus or a motor stimulus. For e.g. in order to move a muscle, the order for that muscle to contract starts at the cerebral cortex in the somatomotor area. That is the first order neuron. The axon of the 1st order neuron will synapse with the 2nd order neuron at the level of the brain stem, which commonly decussate (crosses over) to the opposite side. In turn, the axon of the 2nd order neuron will descend along the spinal cord tracts where it will synapse with the 3rd order neuron. The 3rd order neuron is located in the ventral horn of the spinal cord, which will exit with the spinal nerve to supply the muscle.
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What is the entire series of events through a three-neuron loop?
In a three-neuron loop, the first neuron sends a signal to the second neuron via a synapse. The second neuron processes the signal and sends it to the third neuron through another synapse. Finally, the third neuron integrates the signal and produces a response or transmits it further in the neural network.
What proteins does a neuron make?
A molecule is many order of magnitude smaller than a neuron. A neuron is made of molecules not the other way around.
Which does not constitute part of a two-neuron reflex?
A two-neuron reflex typically involves a sensory neuron carrying information from a sensory receptor to the spinal cord, where it synapses with an interneuron. The interneuron then synapses with a motor neuron that carries the response signal to an effector organ, such as a muscle or gland. In this pathway, a third neuron would not typically be involved in a two-neuron reflex.
Which neuron delivers sensations to the cns?
Afferent neurons receive and transmit impulses to the CNS.
Can a first order sensory neuron sometimes be a sensory receptor?
The first order sensory neuron can sometimes be a sensory receptor because it is what sends the signal to the brain from the receptor. The second order goes from the brainstem to the thalamus.
What is neurons associated with sensory receptor?
third order neuron
What is the entire series of events through a three-neuron loop?
In a three-neuron loop, the first neuron sends a signal to the second neuron via a synapse. The second neuron processes the signal and sends it to the third neuron through another synapse. Finally, the third neuron integrates the signal and produces a response or transmits it further in the neural network.
What proteins does a neuron make?
A molecule is many order of magnitude smaller than a neuron. A neuron is made of molecules not the other way around.
Which does not constitute part of a two-neuron reflex?
A two-neuron reflex typically involves a sensory neuron carrying information from a sensory receptor to the spinal cord, where it synapses with an interneuron. The interneuron then synapses with a motor neuron that carries the response signal to an effector organ, such as a muscle or gland. In this pathway, a third neuron would not typically be involved in a two-neuron reflex.
Which neuron delivers sensations to the cns?
Afferent neurons receive and transmit impulses to the CNS.
What is the pathway of an impulse in a reflex arc?
Sensory receptor, sensory neuron, interneuron, motor neuron, and muscle.
What neurotransmitter do first order neuron secrete?
ach
Can a first order sensory neuron sometimes be a sensory receptor?
The first order sensory neuron can sometimes be a sensory receptor because it is what sends the signal to the brain from the receptor. The second order goes from the brainstem to the thalamus.
What do molecules make?
A molecule is many order of magnitude smaller than a neuron. A neuron is made of molecules not the other way around.
What is a neuron's job?
A neuron cell's job is to send electrical pulses throughout the body in order to coordinate the body's movements and activities.
What is the first order of neuron of taste pathway?
bipolar ganglion
Where do first order sensory neuron axons reside?
In a ganglion.
