ABSTRACT
Corpus callosum is the main commissural tract between the two halves of the brain and assumes an essential job in transferring sensory, motor, and cognitive data from identical regions in the two brain hemispheres. Literature on the issue of the human corpus callosum sexual dimorphism is not universal. Similarly, age related change in corpus callosum measurements is also not consistent.METHODSDifferent diameters of brain and corpus callosum like longitudinal and vertical diameters of brain and length, height, widths of corpus callosum etc. were measured with digital vernier caliper.RESULTS37 brains were collected, out of which 24 were male & 13 were female brains of various ages between 20 years and 70 years of age. Average longitudinal & vertical diameters of brain specimens under study were 158.29 mm and 102.41 mm respectively and average length of corpus callosum was 72.19 mm. Change in length of corpus callosum in relation to gender is not significant with p value >0.05. There is decrease in length of corpus callosum after 65 years of age.CONCLUSIONSPositive linear correlation was observed between length of corpus callosum and the length & vertical diameters of brain. The study has failed to establish statistically significant gender differentiation in the diameters of corpus callosum. Also, there was decrease in the length of corpus callosum (EZ) in 65 years and above age group with decrease in height and width of body as well as splenium of corpus callosum between 50 - 60 years age group.
ABSTRACT
It is often a challenge to determine if the brain ventricles are within normal limits or swollen with the age of the patient. With a standardized and comparable system, it is therefore necessary to define normal ventricular size ranges. Cadaveric dissection is always considered the gold standard of anatomical education. Present work is undertaken to study morphometric analysis of lateral, third & fourth ventricles by dissection method. Morphometric assessment of the ventricular system is helpful in the diagnosis as well as classification of hydrocephalus and in the evaluation and monitoring of ventricular system enlargement during ventricular shunt therapy.METHODSDifferent parameters of all parts of lateral ventricle, third and fourth ventricle were measured with digital vernier caliper in cadaveric brain specimens. The brain specimens were obtained from dead bodies subjected to post-mortem examinations in the Department of Forensic Medicine and from the dead bodies voluntarily donated to the Department of Anatomy, Silchar Medical College, Silchar.RESULTS37 brain specimens were obtained, out of which 24 were male, 13 were female and were of different age groups. Change in the parameters of different ventricles in relation to gender was found to be significant. Ventricular sizes are also observed to be more after the age of 60 years.CONCLUSIONSThere is a positive correlation in measurements of the brain ventricles with age and variation in accordance with gender and laterality.