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Sushruta Samhita is one of the 3 great Brihattrayi of Ayurveda. Sushruta Samhita is the best one in Sharira
(sariresushrutahsresthah). Ayurveda is the holy science among all the pathies. In ancient text, description of Sharira and its anatomical structures described very manually.
According to Acharya Sushruta has described about Siras on Shareerasthan Adhyay 7
SiravarnavibhaktiSharira and Adhyay 8 SiravyadhvidhiSharira. Sushruta has classify the Sira, Dhamani and Srotas.
Caraka has described Sira, dhamani and srotas are not separately.
The term Sira means of blood vessels and other place it’s called nerves. Sushruta has given 4 types of Siras- Arun, Neela, Lohita, Sweta. These are respectively having doshas are Vata, Pitta, Kapha and Rakta. It is very difficult to know about it like Modern Anatomy. We can describe Sira is the vein, which carry deoxygenated blood from all over body towards the heart. The blood from Siras by flow velocity called “Saran kriya”. Total 700 Siras in our body. Siras are having two types are Vedhya and Avedhya Sira. Vedhya Siras are called puncturing vein and Avedhya Siras are called not puncturing vein. Vedhya Siras are 602 in no. and Avedhya Siras are 98 in no. Out of total 700 Siras, 40 moola Sira, which are divided into 4 groups and these are Vatavaha, Pittavaha, Kaphavaha and Raktavaha and 10,10,10,10 in no. respectively. To explore and find out the references in relation to sira in Sushruta Samhita. To review the concept of sira in Sushruta Samhita and correlated with current situation. Different references are available in Sushruta Samhita and Modern Anatomy texts regarding Sira. Siras are correlated with the blood vessels, lymphatics and nerves in Modern Anatomy.