Sciatica is pain, tingling, or numbness produced by an irritation of the nerve roots that lead to the sciatic nerve.The sciatic nerve is formed by the nerve roots coming out of the spinal cord into the lower back. It goes down through the buttock, then its branches extend down the back of the leg to the ankle and foot.ciatica is pain, tingling, or numbness produced by an irritation of the nerve roots that lead to the sciatic nerve.
prefrontal lobotomy - surgical interruption of nerve tracts to and from the frontal lobe of the brain; often results in marked cognitive and personality changes. frontal lobotomy, leucotomy, leukotomy, lobotomy, prefrontal leucotomy, prefrontal leukotomy.
The prefrontal cortex, which is part of the brain's frontal lobe, is the region responsible for short-term memory. The Canadian Institutes of Health Research states that the human prefrontal cortex is highly developed, resulting in the complex functions and manipulation of memory. The prefrontal cortex is referred to as the coordinator in short-term memory, as it is involved in the ways in which memories are used. Brain imaging shows that activation occurs in the prefrontal cortex during rehearsal, an essential step in transforming short-term memories into long-term memories.