Astanga Hrudaya
तासां शतानां सप्तानां पादोऽस्रं वहते पृथक्। वातपित्तकफैर्जुष्टं शुद्धं चैवं स्थिता मलाः॥३५॥
Sira vibhaga classification of veins: Out of the seven hundred siras (veins) one fourth of them (one hundred seventy-five) carry blood vitiated by vata, pitta, kapha and pure (unvitiated) blood separately the mala (dosa),
english translation