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Category Archives: Neurology

[Anatomy] Motor Pathways


Somatosensory Pathways Motor pathways are formed from the cerebral nuclei, the cerebllum, descending projection tracts, and motor neurons. Descending project tracts are motor pathways that originate from the cerebral cortex and brainstem. There are at least two motor neurons in the somatic motor pathway: an upper motor neuron and a lower motor neuron. Motor neurons […]



Reflex are rapid, automatic, involuntary reactions of muscles (cardiac, smooth, and skeleton) or glands to a stimulus. All reflexes have similar properties: A stimulus is required to initiate a response to sensory input. A rapid response requires that few neurons be involved and synaptic delay be minimal. A preprogrammed response occurs the same way every time. […]

[Anatomy] Sensory Pathways


The CNS communicates with peripheral body structrues through pathways. These pathways conduct either sensory or motor information; proccessing and integration occur continuously along them. These pathways travel through the white matter of the brainstem and/or spinal cord as they connect various CNS regions with cranial and spinal nerves. A pathway consists of a tract and […]