Background and objectives: Septomariginal trabeculae or Moderator band is a specialized bridge connecting interventricular septum to the base of the anterior papillary muscle. It contains Right Bundle branch of HIS, it is also Known to prevent the over distension of the right ventricle. The literature review shows the paucity of articles related to morphological and morphometric evaluation. Since it has a great clinical importance its, further studies become Mandatory. Here we have measured the angle of the Moderator band to its origin from the interventricular septum and the anterior papillary muscle is measured. The superficial marking of Moderator band on the sternocostal surface of the right ventricle is marked. Materials and Methods: 50 Formalin soaked cadaveric Hearts were taken from the department of Anatomy of KSHEMA. 36 Males and 14 Female Hearts were tagged according to ascending order of the age. Moderator band,surface marking on sterocostal surface , the angle with the anterior papillary Muscle ect are Noted. Result: The morphological variations are noted. The results are compared with gender, with the previous results. Conclusion: There is a difference in the course of moderator band. In 60%the moderator band runs downwards and to the right, in 30% it is found to be horizontal and in 10% runs upwards and to the right. The difference is found in males and females.as well. The surface marking of moderator band on sternocostal surface of the heart measures more due to the convexity of the right ventricular surface. This knowledge will help in accurate detection of the moderator band by echocardiography and in surgeries.

BACKGROUND The papillary muscle basal connections have significant clinical implications. Variety of studies done on its morphology and function by various specialists in different departments. A close look on these revealed the interconnections of papillary muscles to one another and to the interventricular septum of both ventricles is related to uncoordinated contractions of papillary muscles, leading to hyper or hypokinesia or prolapse or even its rupture. METHODS Our study done in 25 formalin soaked hearts revealed after the deep and meticulous dissection, reflecting the walls of ventricles laterally the numerous interconnections of papillary muscles at its bases and IVS. Ventricles are opened by inverted ‘L’ shaped incision and its reflected more laterally till all the papillary muscles is visible in one frame after incising the moderator band. The connections were noted, measured, photographed, tabulated, compared with similar studies and analysed with experts with respective fields. RESULTS Almost all the specimens did have the interconnections. Further the post mortem findings of the cardiac related deaths with involvement of papillary muscles suggest damage to such ‘bridges’. The moderator band extensions to the base of right APM, and its extension to the posterior groups is noted in all the specimens. The bridge from the IVS to bases of both the groups of papillary muscles is noted in left ventricle. In90% of specimens the one PPM is found to be loosely connected, more so in left ventricle. CONCLUSIONS We are of a conclusion that such basal interconnections and to the interventricular septum are responsible for rhythmic contractions of papillary muscles of both ventricles. Since the AV valves have to open simultaneously, interconnections becomes mandatory as the impulse has to reach it before it reaches the trabeculae carniae. One of the Posterior papillary muscles is loosely connected to other papillary muscles, may be the reason for its rupture, more so in left ventricle. KEYWORDS Papillary Muscle, Interbasal Connection, Moderator Band, Valvular Prolapse, AV Valves

Background: Knowledge of anatomy, one of the core preclinical subjects, is very important for medical undergraduates to have a thorough understanding of various clinical conditions. The traditional method of learning anatomy involves dissection of human cadavers. Medical education system is entering an era in which the traditional teaching methods are being supplemented by newer technological teaching techniques. Simulation based teaching like virtual dissection table “Anatomage” can enhance the understanding and retaining capacity of the subject. The aim of the study is to determine the perception of virtual dissection, among students and staff and to compare the knowledge acquired through simulation based teaching and traditional teaching method. Material and Method: The study comprised of 150 first-year MBBS students who attended regular theory class on ‘joints of musculoskeletal system’ and answered pre-test. The students were divided into two groups, based on teaching method, one which involved the use of a virtual dissection table, and the other, involving the use of cadaveric dissection. The students were made to attempt the post-test. The students were then assessed based on their responses to the pre- and post-tests. Feedback on the overall utility of the table from both students and staff was taken. Results: The mean post-test scores were significantly higher than the mean pre-test scores, irrespective of the teaching method used. (p<0.001) However, the students who were exposed to the virtual dissection table scored comparatively better in the post-test than those exposed to cadaveric dissection. (p<0.001) 100% of the faculty and 93.3% of the students agreed that three-dimensional visualization improves understanding of anatomical structures. Conclusion: The findings of this study suggest that though cadaveric dissection and virtual dissection enhance learning, the students tend to perform better with virtual dissection. The incorporation of simulation-based teaching into the Anatomy curriculum is essential to supplement traditional cadaveric dissection and ensure engaging as well as high impact delivery of the curriculum. KEY WORDS: Simulation, Virtual dissection, Musculoskeletal, Anatomage, Cadaver, Dissection, Anatomy, MBBS, Teaching Methodologies.

BACKGROUND Palmaris longus (PL) tendon agenesis varies from 5 % to 30 % in different ethnic groups worldwide. Its agenesis is associated with decreased wrist grip, pinch grip, presence of cheek dimples, difference of prevalence of agenesis with gender and handedness and with flexor carpi superficialis tendon. Student and general population surveys done in previous studies shows the association between these variables. The purpose of this study was to find out the association between the presence of cheek dimples with absence of palmaris long tendon. METHODS We examined 1200 medical and allied health students (600 males, 600 females) aged 18 - 24 years to assess the incidence of palmaris longus absence and the presence of cheek and chin dimples. The presence or absence of palmaris longus was assessed by clinical inspection using standard tests. The effectiveness of these’ standard tests’ is also tested along with wrist strength and pinch strength. RESULTS 163 students had PL agenesis. One hundred and twenty-one subjects had unilateral absence of palmaris longus (13.5 %). The tendon was absent bilaterally in 42 subjects (3.5) 77 students had either unilateral or bilateral cheek dimples out of 163 PL agenesis. The Mishra’s test is found to be most effective for properly defining the PL at wrist. CONCLUSIONS Prevalence of absence of palmaris longus is around 13.5 %. Unilateral agenesis of PL is 10 %. Absence of palmaris longus has strong association to presence of cheek dimples. Up to 45 % of PL agenesis will show either unilateral or bilateral cheek dimples. Studies on cheek dimples, panniculus carnosus are very scanty in literature; more studies might reveal interesting correlation. The grip strength of the wrist is unaffected due to palmaris longus agenesis; however, the pinch grip of 4th finger with thumb appears to be certainly decreased. Mishra’s test proves to be the best in demonstrating the PL. A radiant smile displaying the cheek dimples, has 50 % possibility of absence of PL. KEYWORDS Palmaris Longus Agenesis, Cheek Dimples, Bifid Zygomaticus Major, Panniculus Carnosus, Chin Dimples