Morphometric Study of Asymmetry of the Interhemispheric Sylvian Fissure - A Cadaveric Study
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Date
2024-09
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Publisher
IMED Research Publications
Abstract
Background: The most intricate outcome of biological evolution is the human nervous system. One of the earliest sulci to form on the cerebrum is the lateral sulcus, also known as Sylvian fissure (SF), of the cerebrum. The study was done to observe the morphometry, asymmetry, and variability of the Sylvian fissure (SF) and the sulci surrounding and inside the pars-opercularis (PO) and pars-traingularis (PT). Method: the present is cadaveric study and was undertaken in the Department of Anatomy at Government Medical College Srinagar. All the parameters of the lateral sulcus (sylvian fissure), which include measurements of its posterior ramus (PR), anterior ascending ramus (AAR), and anterior horizontal ramus (AHR) were taken with the help of thread. The thread was held in position on both sides with the forceps and the length of thread was measured with vernier caliper. Results: The present study was carried out on 20 formalin fixed adult human cadaveric brains. The sylvian fissure mean length on right was found to be 84.8mm and on left side 85.8mm. the mean length of AAR was found to be 25.96mm on the right side and 28.6mm on the left side, and the mean length of AHR was 29.16mm on the right side and 33.44mm on the left side. Conclusion: Both left and right Sylvian fissures had a significant association, and the left was found to be noticeably longer than the right. The frontal and parietal lobes are separated from the temporal lobe below by the SF, a major surgical gateway.
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Keywords
Human brain, Sylvian fissure, Lateral sulcus, pars-traingularis, Vernier caliper
Citation
Yousuf Syed Mubashir, Jalal Rukaiya, Itoo Mohd Saleem, Bhat Gh. Mohammad . Morphometric Study of Asymmetry of the Interhemispheric Sylvian Fissure - A Cadaveric Study . International Journal of Anatomy and Research. 2024 Sep; 12(3): 8991-8995