HUBS1416 Lecture Notes - Lecture 3: Dorsal Root Ganglion, Posterior Cerebral Artery, Spinothalamic Tract
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12 Oct 2018
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Explain what integration means in the context of central nervous system function. The cns is responsible for receiving, processing, collating and making sense of all the sensory information arriving. It is also responsible for preparing and sending out an appropriate motor response to that sensory input. Both the spinal cord and the brain carry out integration. Describe how sensory neurons entering the spinal cord and motor neurons leaving it are organised. Describe the function, location in the spinal cord and decussation point of the following tracts: spinothalamic, dorsal column, and corticospinal (pyramidal). Posterior (or dorsal) side: back side of spinal cord, where dorsal root (sensory neurons) enter. Anterior (or ventral) side: front side of spinal cord, where ventral root (motor neurons) enter. In general, the higher on the spinal cord the injury occurs, the more dysfunction the person will experience.
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