Charak Samhita
अधःप्रतिहतो वायुरूर्ध्वस्रोतःसमाश्रितः । उदानभावमापन्नः कण्ठे सक्तस्तथोरसि ॥६॥
॥ Pathophysiology॥ Vata being obstructed in the lower region of the body, moves upwards, afflicts the channels of circulation in the upper part of the body, takes over the function of udana vayu and gets localized in the throat and chest.
english translation
adhaHpratihato vAyurUrdhvasrotaHsamAzritaH । udAnabhAvamApannaH kaNThe saktastathorasi ॥6॥
hk transliteration by Sanscript