A Cadaveric Study to Correlate the Antero-Posterior Length of Insula and Sylvian Fissure Length on Lateral Surface along with its Clinical Significance

Dr. Jaya Kadam, Dr. Deepak Sharma

Abstract: The cerebral hemisphere is divided by a longitudinal fissure into 2 parts right and left, each containing 6 lobes Frontal, Parietal, Temporal, Occipital, Insular cortex and Limbic system. The Frontal, Parietal, Temporal, Occipital lobes clearly visible on the brains surface, the insula is hidden in the sylvian cistern. The limbic lobe is a curved area on the medial side of each cerebal hemisphere.29 human cadaveric brains, comprised of 58 insulae and 58 sylvian fissures (lateral sulcus) are studied in the Department of Anatomy, Gandhi Medical college, Bhopal (M. P. ). The purpose of our study is to understand regional anatomy of Insula and sylvian fissure. There is positive correlation between the anteroposterior length of insular cortex and sylvian fissure length on lateral surface. Insula has high clinical and surgical importance due to asymmetry of insular cortex, its variations and correlation with sylvian fissure. The study is expected to be useful for neuroanatomists, neurosurgeons, neurophysicians, neuroradiologists & psychiatrists.

Keywords: sylvian fissure, insular cortex