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Do Second-order neurons of ascending sensory pathways always decussate.?
Wiki User
∙ 12y ago
No! Only neurons of the specific (lemniscal) & non-specific (anterolateral) pathways decussate and sensation is therfore interpreted in the opposite cerebral hemisphere.
Spinocerebellar ascending pathways transmit proprioceptive sensory stimuli to the same side of the cerebellum.
Wiki User
∙ 12y ago
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What is a neuron connecting sensory and motor neurons?
Associated Neurons a.k.a Interneurons, lie between motor and sensory neurons in neutral pathways where intergeneration occurs. Most interneurons are confined within the CNS.
What is the main function of interneuron?
interneurons are located in the brain and spinal cord. They are stimulated by signals reaching them from sensory neurons. they process that information and send a response through the motor neurons.
What is an interneuron?
An interneuron is a special nerve cell that communicates directly between the sensory and motor neurons instead of first going to the brain.
How many neural pathways are there in the brain?
This depends entirely on how you are defining "neural pathways". If you mean, very basically, a connection between any two neurons, the number is huge, probably more than the number of atoms in the universe. But I suspect you mean larger pathways, designed to carry out specific functions. However, once again, it's the level of abstraction that is important. Brain functions can be looked at in varying levels of detail, and the number of pathways for carrying out small function is also probably huge. Even the idea of "pathways" is open to interpretation. So, I'd suggest asking your question in some more specific way. You might approach it through a great link to understanding the brain: http://thebrain.mcgill.ca/flash/index_d.html
What is the bundle of nerve fibers that send messages to the brain which interprets them?
The nerves that carry impulses toward the brain are called efferent nerves. Afferent nerves carry impulses away. In way to remember this is afferent equals away.
Second order neurons of both specific and nonspecific ascending pathways terminate where?
Thalamus.
Where do motor neurons decussate?
decussation of pyramids
What are the neurons that conduct the nerve impulses from the spinal cord and the brainstem to the thalamus called?
afferent nerves of the ascending spinal pathways.
What do the pathways in the brain do?
They allow neurons to communicate with each other
How many motor neurons are involved in the descending motor pathways?
two motor neurons are always involved in descending motor pathways. the upper motor neuron and the lower motor neuron.
What is the link between neuron pathways and learning?
our core learning is recorded in the set of neurons. sensory neurons send decoding messages to the motor neurons. in case the information generated by one set of neurons is insufficient to solve the problem, the inter neurons send furthar questions through the pathways to another set of neurons and carries back the information to the earlier set of neurons. un answered questions get recorded in a new set of neurons as new experience.
What is the majority of all afferent pathways pass through and synapse with neurons?
The motor neuron is the final common pathway for all neurons to travel to complete their synapse. Afferent neurons or unipolar neurons all pass through the cord and brain on this journey.
What is a neuron connecting sensory and motor neurons?
Associated Neurons a.k.a Interneurons, lie between motor and sensory neurons in neutral pathways where intergeneration occurs. Most interneurons are confined within the CNS.
What contains of Pseudopolar neuron?
Sensory pathways contains these pseudounipolar neurons and bipolar neurons. The pseudounipolar neurons have dendrites fused with axon and they are for somatic senses. The bipolar neurons have two relatively equal fibres extending off their central cell body and they are for smell & vision.
What is the Function of upper motor neurons?
Upper motor neurons primarily convey information from your motor cortex to brainstem nuclei (corticobulbar tract) or anterior horn cells in the spinal cord (corticospinal tract). Other tracts exist but are minor or redundant. Upper motor neurons decussate.
What is the main function of interneuron?
interneurons are located in the brain and spinal cord. They are stimulated by signals reaching them from sensory neurons. they process that information and send a response through the motor neurons.
Does the descending or motor pathways carry information away from the brain and toward the body through two groups of neurons?
True
