A REVIEW LITERATURE OF TWAK SHARIR- W.R.T. RACHANA AND KRIYA SHARIR

Ayurveda is an ancient & holistic system of medicine. Sushruta Samhita an oldest one Samhita of Ayurved. Acharya Sushruta in sharrer sthan has mentioned five Gyanendriyas (sense organs). skin, which is largest covering organ of body, in Ayurveda it comes under the term Sparshanendriya and adhishthana is Twacha (skin). Skin performs many functions like touch sensation, cold, temperature, pain, pressure, etc. skin serve to be first line of defense whatever we get into from environment the first response is from skin. Functions of all three dosha are well elaborated in the twak. Vata is responsible for carrying sensory input from twak to murdha by vyaan vayu, Piita in form of bhrajak pitta controls all the types of metabolic activities, and Kapaha regulates functions of sweat gland and sebaceous glands and maintains moisture. Being largest organ in the body it is also site of mana and rasa dhatu. Rasa dhatu kshaya is firstly and well elaborated in twak. Aging is the process that is well depicted in twak. Ayurveda advocates preventive and curative measure to control aging of twak.This article has been comprehended with all details about skin (twak) including Utpatti, synonyms, kriya, Rachna sharir of Twacha, types (layers) etc. skin is one of rog marg variety of diseases are observed on skin which are very unpredictable. Skin is not only rogmarg but also it is part of treatment modality. understanding twak an account with anatomy & physiology will help in various ways for diagnosis, prognosis, treatment etc.