Skin is the seat of a sense organ. The senses of touch, pain, temperature, pressure are felt by it. It is a Matruj Avyava i.e. derived from mother or having a maternal origin. It gives external covering to the whole body.The seven layers of skin get their nutrition from Mansa Dhatu {muscle tissue}. It is known as a UpDhatu (secondary tissue product) of the Raktadhatu (blood) because it only mimics the Dhatu’s in beholding the body. It does not do Poshan Karma i.e. do not give nutrition to the other Dhatus.