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What are the two pathways by which messages are transmitted?
1 sensory organ - sensory nerves - spinal cord - brain 2 brain - motor nerves - spinal cord - muscles
What brain structure directs sensory and motor neuron pathways passing between spinal cord and cerebral cortex?
dendrons
Spinal reflexes are produced in what?
Introduction. Spinal cord reflexes are simple behaviors produced by central nervous system (CNS) pathways that lie entirely within the spinal cord. The sensory afferent fibers that evoke these reflexes enter the spinal cord and activate spinal motor neurons directly or through a chain of one or more spinal interneurons
How does the spinal cord works?
The spinal cord transmits messages between the body and brain through nerve pathways.
Ascending pathways in the spinal cord convey what?
Sensory information
What are sensory pathways that are located in the spinal cord or brain referred to?
Nerves
What causes spastic dysarthria?
Spastic dysarthria is caused by damage to the primary voluntary motor pathways, which originate in the frontal lobes of the brain and descend to the brainstem and spinal cord.
Which of the following does NOT describe the spinal cord tracts pathways?
memory. it does have relay, somatotype and decussation
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 is the neuron inside the spinal cord?
Alpha motor neurons (α-MNs) are large lower motor neurons of the brainstem and spinal cord.
What is the location for interneurons?
They are found in the Brain and Spinal Cord. They pretty much are located there because The Spinal cord and Brain are major spots where the nervous system works.
The parasympathetic motor pathways begin in the areas?
Most parasympathetic motor pathways begin in the dorsal aspect of the medulla, in the dorsal motor nucleus of the vagus nerve. Parasympathetic motor pathways also come from the preganglionic cell bodies located in the lateral horn of the spinal cord in the sacral region (pelvic splanchnic nerves). Thus, the description cranio-sacral is often used to describe the origins of the parasympathetic innervation.
