The gray matter of the primary somatosensory coex contains six layers of cells. Which layer(s) receive the bulk of incoming signals from the somatosensory nuclei of the thalamus?
Correct Answer: IV
Description: Layer IV of the somatosensory coex receives the bulk of the input from the somatosensory nuclei of the thalamus. The cerebral coex contains six layers of neurons, beginning with layer I next to the brain surface and extendingprogressively deeper to layer VI. The incoming sensory signal excites neuronal layer IV first; the signal then spreads toward the surface of the coex and also toward deeper layers.
Category:
Physiology
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