Ayurveda is the science which deals with the health of human being. Ayurveda is an ancient system of Indian medicine and its main objective is to maintain the optimum level of a healthy individual and treat the diseased one. The ancient texts of traditional science described Rachna Sharir as important aspect of Ayurveda which plays significant role for understanding structural concept of human body. Ayurveda classics described –“Dosha Dhatu Mala Mulam Hi Sharirm’’, these basic elements are circulating through Dhamini, Sira and Srotas in our body and transportation takes place. It is necessary to analyze the word Sira. As per the ancient classics and the text of present authors. The term is as old as Vedas. It is said that the word Sira is derived from the vedic term Hira4. The Hira is described as blood carrying channel towards the heart. Sira is used to represent tubular structure to carry materials such as Rasa, Rakta and it is one of the synonyms of srotas. Previously sira sharir has been studied by many scholars in various contexts but there are not yet studied in reference with ‘to structure included under term sira’.
