It seemed that the adjustment of ear acupuncture is controlled by some factors that are unknown now ; 4 . pc and npc are different areas on ear . but the difference of adjustment between them is relative . 5 电针耳穴胸肺区、非胸肺区对心血管功能产生调节的机理可能与pgl的gaba递质系统有关; 3 .电针耳穴的调节机制在不同状况下可能受某些因素的不同调控; 4 ，耳郭胸肺区与非胸肺区是有区别的耳区，但功能的特异性是相对的。
