摘要: As a result of the relative sizes various compartments in nasal cavity, bulk airflow is along floor cavity. The percent directed to olfactory region (the superior cavity) about 10%. Structural changes cavity can alter pathways and characteristics (e.g. laminar, mixed or turbulent) within compartments. relationship between response stimulus complex may vary depending on physiochemical properties odor rate at which odorants are delivered receptors. Changes impact functions identification, differentiation) differently. When there obstruction, decline ability not simply be an access problem, since disease affect processing many levels.