Type of Article: Original Research
Year: 2016 | Volume 4 | Issue 3 | Page No. 2614-2617
Date of Publication: 31-07-2016
DOI: http://dx.doi.org/10.16965/ijar.2016.292
MORPHOGENSIS OF SULCI ON SUPEROLATERAL SURFACE OF HUMAN FOETAL BRAIN OF DIFFERENT GESTATIONAL AGE
Gayatri. N 1, Nagaraj. S 1, D. Suseelamma 2, Anil. R. Sherke 3.
*1 Assistant Professor, Department of Anatomy, Kamineni institute Of Medical sciences, Narketpally, Narketpally, Talangana, India.
2 Professor and Head of the Department Anatomy, Mamatha Medical College, Khammam, Talangana, India.
3 Professor and Head of the Department Anatomy, Kamineni institute Of Medical sciences, Narketpally.
Address: Dr. Gayatri. N, Asst. Professor of Anatomy, Kamineni Institute of Medical sciences, Narketpally-508254, Dist.-Nalgonda, Telangana, India. Mobile no.: +919866084854.
E-Mail: drgayatri1884@gmail.com
ABSTRACT
Background: During intrauterine life brain surface is smooth up to 14th week. The cortical maturation and vascularisation of lateral surface of the brain starts with the insular region, suggesting that this region is the central area of cortical development between temporal and frontal lobe. Delayed sulcation during pregnancy leads to agenesis of corpus callosum along with additional brain abnormality.
Materials: This study was conducted on 50 dead foetuses in anatomy department brought from the department of Obstetrics and gynaecology.
Results: Brain is divided into two half by appearance of median longitudinal fissure between 12-14weeks. The surface of each cerebral hemisphere is smooth up to 4th month, later surface depression appears on the supero lateral surface at 5th month. Growth of adjoining lobes of brain make surface more convoluted ,and at 6th month sulcus make their appearance .All important sulci are laid down by the end of 7th-8th month.
Conclusion: There is no differences between male and female brains of same gestational age. Knowledge of the sulci enlightens us regarding treatment and protection of vital structures.
KEY WORDS: Cortical maturation, Sulci, Gestational age, Foetal brain.
REFERENCES
- K. Behnke, M. Rettmann, D. Pham, D. Shen, S. Resnick, et al. "Automatic classification of sulcal regions of the human brain cortex using pattern recognition," in Proc. SPIE's Medical Imaging, San Diego, CA.2003;Feb. 15-20.
- A.K. Dutta; Essentials of neuroanatomy. Forebrain 3rd edition2009;41-50.
- A.K. Dutta; Human embryology. The nervous system; 2007, vol 3,251 & 261-277.
- Keith. I. Moore. The developing human clinical oriented embryology.2008;396-404.
- Gregory E. Antonio, Winnie C.W.Chu, David K.W.Yeung, Anil T Ahuja. Imaging of the developing brain; Neuroembrology & aging. 2008; 5:23-31.
- Dr. Hughey: Military Obstetrics & Gynecology. Brookside Associates Medical Education Division. 2009;395.
- G.J. Romanes. Cunningham Manual of Practical Anatomy, Head and neck and brain.1986;39:43-44.
- Development of Nervous system. Henry Gray’s 39th edition, London; Elsevier Churchill & Livingstone P, 2005:266.
- V. I. Savel’ev. Variability of sulci and gyri in the inferior parietal Region of the human during ontogeny. Neuroscience & Behavioural Physiology.1984;14(1):60-63.
- System based embryology. T.W. Sadler, Langaman’s Medical Embrology.11th edition, Lippincott Williams and Wilkins.2010;310
- A. Afif, R. Bouvier, A. Bunerd, J. Trouillas and P. Mertens: Development of the human fetal insular cortex: study of the gyration from 13 to 28 gestational weeks. Brain Structure and Function.2010;212(3-4):335-346.
- Catherine Garel, Emmanuel Chantrel et al. Fetal cerebral cortex: Normal gestational landmarks identified using prenatal MR imaging; American Journal of Neuroradiology. 2001;22:184-189.
- Chi JG, Dooling EC, Gilles FH. Gyral development of the human Brain. Ann Neurol.1977;1:86-93.
Gayatri. N, Nagaraj. S, D. Suseelamma, Anil. R. Sherke. MORPHOGENSIS OF SULCI ON SUPEROLATERAL SURFACE OF HUMAN FOETAL BRAIN OF DIFFERENT GESTATIONAL AGE. Int J Anat Res 2016;4(3):2614-2617. DOI: 10.16965/ijar.2016.292
