Lateral sulcus Lateral sulcus The lateral sulcus (also called Sylvian fissure or lateral fissure) is one of the most prominent features of the human brain. The lateral sulcus is a deep fissure in each hemisphere that separates the frontal and parietal lobes from the temporal lobe. The insular cortex lies deep within the lateral sulcus. The lateral sulcus divides both the frontal lobe and parietal lobe above from the temporal lobe below. It is in both hemispheres of the brain. The lateral sulcus is one of the earliest-developing sulci of the human brain. It first appears around the fourteenth gestational week. The
The Body Silent experience muscle spasms in his anus, and in his lower abdomen in 1972, and soon had trouble urinating. He was then diagnosed with an anal fissure, meaning of a slight break in the muscle. After a few years of symptoms, he visited a neurologist and was diagnosed with a benign but slowly growing tumor in the upper part of his spinal cord. Within two years his central nervous system was severely damaged, and lost control of most bodily functions. In 1987, the book was awarded the Columbia University's Lionel Trilling Award. The Body Silent The Body Silent is a personal