Category Test - Herbs Intro Midterm

Gui Zhi (cinnamomi ramulus) belongs to which category?
Warm, Acrid Herbs that Release the Exterior promote sweating to expel external pathogens. They tend to be warm in temperature and acrid in flavor. They usually enter the Lung channel. Use caution in cases of yin deficiency.
Gui Zhi releases the exterior and muscle layer, treating Tai Yang Deficiency syndrome (Zhong Feng, wind strike). It also warms the yang of the chest, middle-jiao, and UB. Due to its warming nature, it can treat blood stagnation due to coldness.