Introduction: Formaldehyde is a naturally-occurring organic compound with the formula CH 2 O. The anatomists, technicians in biological science laboratories, and medical school students in dissection hall are regularly exposed to formaldehyde. My present study is investigates the relation between exposure to formaldehyde and acute changes in respiratory functions and non respiratory functions of 1 st year MBBS students. Material and Methods:The study was carried out on 150 1 st year medical students at L N Medical College and Research centre, Bhopal. A pre-validated questionnaire was used to evaluate the opinion of the students of the 1 st year. Result: The observations of this study are tabulated in the tables 1& 2. Maximum number of students was positive response among symptoms described. Conclusion: Instead of formaldehyde, using of Glutaraldehyde is a feasible alternative chemical for fixation. The concentration of formalin and duration of time should be reduced.

To anaesthetize posterior part of soft palate for various surgical procedures, knowledge of the position of the greater palatine foramen (GPF) is very important. Blocking of maxillary division of trigeminal nerve or its branches for local anaesthesia is common practice for maxillofacial surgeries. Objective: this study was aimed to determine the morphology of greater palatine foramen in relation to certain fixed points. Methodology: this study was conducted on 86 dry adult Indian skulls. All the measurements were done with vernier caliper accurate to 0.1 mm. Using flexible stainless steel wire direction of opening of GPF into oral cavity was noted. Results: In 73.26% cases, GPF is located opposite third maxillary molar tooth. Mean distance from GPF to the incisive fossa (IF) was found to be 35.9 mm. The mean distance between posterior margins of GPF to posterior border of hard palate was 3.4 mm. The distance between the GPF to the midline maxillary suture was 15.3 mm. In 74.42% cases, direction of opening of GPF was located antero-laterally. Arched palatal vault was found in 66.28% skulls. Conclusion: The location of greater palatine foramen is variable still in most of the cases it is located opposite third molar tooth and is directed antero-later.

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Correlation between craniocaudal length of right lobe of liver and age of subjects is not significant at 5% level of significance. Correlation between craniocaudal length of right lobe of liver and gender of subjects is significant at 5% level of significance, (p=0.00). Craniocaudal length of right lobe and height of subjects showing +ve correlation and correlation between ccl of rt lobe and height  of subjects is significant at 5% level of significance. Craniocaudal length of right lobe and body mass index  of subjects showing +ve correlation (r=0.356) and correlation between ccl of rt lobe and BMI  of subjects is significant at 5% level of significance. Craniocaudal length of right lobe and weight of subjects showing +ve correlation (r=0.047) and correlation between ccl of rt lobe and weight of subjects is not significant at 5% level of significance.