下列除哪项外均正确反映了外疡的病因与病位的关系() ["发于头面者多因风温、风热引起","发于胸腹者多因气郁、火郁引起","发于臀部者多因火郁引起","发于胫足者多因湿热、寒湿引起","发于上肢者多因风热引起"]
外疡致病因素中下列哪项是错误的() ["外感六淫","感受特殊之毒","经络阻塞","情志内伤","外来伤害"]
外疡可由多种原因引起,但主要是由于() ["外感风温、风热","热毒、火毒","气郁、火郁","外感暑热","外感湿热之邪"]
青蛇毒临床有哪些分型?各有何特点?
臁疮临床怎样分期?各有何特点?
简述经络与外科疾病发病的关系。