The seats of vāta

Vāyu, which moves through the whole body, resides especially in the buttocks, waist, groin and private parts; by its nature it carries the doshas and tissues to their places, and when itself vitiated it vitiates the body. A long footnote says this is a general statement, not the sites of the five vātas, which it then gives: prāṇa in the heart (some say the head), moving in chest and throat, which draws food in, sustains intellect, heart, senses and mind and causes spitting, sneezing, belching and breathing; udāna in the chest, which produces speech and song; samāna in the stomach and bowel, which kindles the fire, digests food and separates essence from waste; apāna in the bowel, which expels wind, urine, faeces, semen, menstrual blood and the foetus at the right time; and vyāna, pervading the body with its seat in the heart, on which nearly all bodily movement depends. It adds that these are the sites of the undisturbed doshas, that all doshas in fact pervade the whole body, and that the five kinds of a dosha share one nature and differ only by site and function.