Results The eustachian tube extend anteriorly and medially from middle ear cavity to the pharynx nasalis, about . ±0.08 mm long, 0.±0.0 mm wide, .±0.08 mm high. The tube was divided into cartilaginous and membranous parts.
Results The eustachian tube extend anteriorly and medially from middle ear cavity to the pharynx nasalis, about . ±0.08 mm long, 0.±0.0 mm wide, .±0.08 mm high. The tube was divided into cartilaginous and membranous parts.
果咽鼓管从鼓室向鼻咽部沿前内方向走行,平均长度约为. ±0.08mm,宽度为0.±0.0 mm,高为.±0.08mm。