Charak Samhita
गतिरूर्ध्वमधश्चैव रक्तपित्तस्य दर्शिता। ऊर्ध्वा सप्तविधद्वारा द्विद्वारा त्वधरा गतिः ॥१५॥
॥ Gati (direction of flow) and prognosis॥ Movement of raktapitta is directed upwards and downwards, the former through seven orifices and the latter through two orifices. There are seven orifices in head and two below.
english translation
gatirUrdhvamadhazcaiva raktapittasya darzitA। UrdhvA saptavidhadvArA dvidvArA tvadharA gatiH ॥15॥
hk transliteration by Sanscript