The relay hub of the brain is the thalamus. It takes in afferent impulses from sense receptors spread out across the body and processes the data before sending it to the proper cortical region.
In the center of your brain is a structure called the thalamus that resembles an egg. It sense as a relay station for all incoming hearing, taste, sight, and touch (but not smell) sensory information from your body to your brain. The temporal lobes help the ears by interpreting audio impulses that come from the auditory canal. They are located parallel to the ears. Near the center of the brain, the thalamus is a paired diencephalon gray matter structure. Each thalamus is connected to the other by the interthalamic adhesion, which is located above the midbrain or mesencephalon and allows for sense fiber connections to the cerebral cortex in all directions. Image matching "Thalamus": The relay is the thalamus. The thalamus in the visual system receives information from the retina, which is then transmitted to the brain by the optic nerve. The lateral geniculate nucleus of the thalamus receives sense , which it then transmits to the primary visual cortex.
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