Lung is connected with the large intestine

The lung stands in exterior-interior relationship with the large intestine. The lung channel connects with the large intestine, and the large intestine channel connects with the lung. The lung’s depurative downbearing helps the large intestine’s function of conveying and transforming of waste, and vice versa. Panting due to phlegm congestion can be treated with draining-precipitants to free lung qì, whereas some types of constipation are best treated by opening the lung. Medicinals that transform phlegm and relieve cough, such as apricot kernel (Armeniacae Semen, 杏仁 xìng rén) and trichosanthes (Trichosanthis Fructus, 栝楼 guā lóu), also have the effect of moistening the intestines.