Upaman Pramana W.S.R. To Tunnasevani Sandhi

Background: -Fundamental aspects of Ayurved concern with Sandhi sharir. It gives information about the basic structure of the human body, which is essential in diagnosis and treatment. Acharya Charak describes sandhi as “Ashthi sanyoga sthanam”, i.e meeting place between two or more bones (Asthi) is called sandhi1 . Acharya Sushruta had categorised sandhi sharira into two main types: Chala (movable) & Achala sandhi (immovable or fixed)2 . Sutures present between the skull bones are immovable joints. Upamana pramana (analogy) is one of the types of pramana widely utilised to explain Sharir concepts. Upamana pramana enlightens the features of unmanifested things with a familiar or manifested thing based on similarities. These analogies mentioned in ancient texts are found to be very helpful in understanding the basic concepts of Rachana Sharir, like Paribhasha, Garbha sharir, Sandhi sharir, Marma sharir etc. The anatomical concept of ‘Tunnasevani Sandhi’ is one example of using analogy. So, a sincere effort has been made to evaluate and analyse the anatomical concept of Tunnasevani sandhi with the help of Upaman Praman. Materials & Methods: The study for Upamana pramana related to Tunnasevani sandhi is done with the help of both Ayurvedic and Modern texts. From Brihatrayis and Laghutrayis and other classical books. Results: It is concluded that Tunnasevani sandhi is located in the skull, & the predominant anatomical structures present in the cranial vault are three sutures- sagittal, parietal & lambdoid suture.