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gray commissure

a bundle of nerve fibers that surrounds the central canal of the spinal cord and connects the anterior and dorsal horns of gray matter in each half of the cord.

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Psychology term of the day

May 30th 2024

recurrent collateral inhibition

recurrent collateral inhibition

a negative-feedback system that prevents rapid, repeated firing of the same motor neuron. To accomplish this, one branch of an axon loops back toward the cell body of the neuron and communicates with an inhibitory Renshaw cell. The Renshaw cell in turn inhibits the neuron.