Abstract：
Parieto-occipital sulcus is one of the major sulcus of the cerebral hemisphere which separates the occipital lobe from the parietal lobe. Morphology of this sulcus varies with age, sex, manual skill, handedness and in many diseases. For various clinical investigations and surgery, detailed morphological knowledge of this sulcus is very much essential for the surgeons and radiologists. This study is carried out to establish a normal standard in length of the parieto-occipital sulcus in different age and sex groups of Bangladeshi people. A cross-sectional, descriptive type of study was conducted in the department of Anatomy, Mymensingh Medical College, Bangladesh from July 2016 to July 2017. About 60 specimens were collected from medico-legal cases and divided into four age groups including, Group A (20-29 years), Group B (30-39 years), Group C (40-49 years) and Group D (50 years and above). The mean length of parieto-occipital sulcus was 3.92±0.559cm to 3.29±0.434 cm in male and 3.81±0.715cm to 3.03±0.551cm in female. The difference in mean length of the parieto-occipital sulcus for both left and right hemisphere between male and female was statistically non-significant in all age groups. For statistical analysis, differences between age and sex groups were analyzed by using students unpaired \'t\' test. In this study, the length of the parieto-occipital sulcus showed gradual decreasing values with advancing age.
摘要：
枕叶沟是大脑半球的主要沟之一，将枕叶与顶叶分开。此沟的形态随年龄而变化,性别,手工技能,在许多疾病中。对于各种临床研究和手术，详细的形态学知识是非常重要的外科医生和放射科医生。进行这项研究是为了建立孟加拉国不同年龄和性别组的顶枕沟长度的正常标准。横截面，描述性研究是在解剖学部门进行的，迈门辛格医学院，孟加拉国从2016年7月到2017年7月。从医学法律案件中收集了大约60个标本，分为四个年龄组，包括，A组（20-29岁），B组（30-39岁），C组（40-49岁）和D组（50岁及以上）。男性顶枕骨沟的平均长度为3.92±0.559cm至3.29±0.434cm，女性为3.81±0.0.15cm至3.03±0.551cm。在所有年龄组中，男女左右半球的顶枕沟平均长度差异均无统计学意义。为了进行统计分析，通过使用学生非配对测试分析年龄和性别组之间的差异。在这项研究中,顶枕骨沟的长度随着年龄的增长而逐渐减小。
