branchial duct
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美
网络 鳃管
双语例句
- Ten of 12 cases had congenital unilateral microtia of the first and second branchial arch syndrome, all had defected ear lobe. Among the 10 cases, 7 had acoustic duct, 3 had aural atresia;
10例为第一、二腮弓综合征的先天性单侧小耳畸形，均有残耳垂，其中7例有外耳道，3例外耳道闭锁；