半规管

Otic vesicle An epithelial sac behind the fifth rhombomere forming the semicircular canals dorsally and the otolith organs ventrally.

耳小囊形成半规管背面与耳石器官腹面且在第五脑特殊节状结构面的一个上皮囊。

Singular neurectomy (posterior ampullary nere transsection) and posterior semicircular canal occlusion are the 2 specific techniques used in intractable BPP surgery.

单纯神切除术（壶腹神）半规管闭术是应用性良性阵发性位置性眩晕的两种特殊的手术疗技术。

Conclusion: The therapy effect of PRM was superior to postural striction, and all patients should be treated by PRM when the diagnosis of posterior semicircular canal BPPV was uncle.

PRM疗效果明显优体位限制疗，凡半规管BPPV诊断明确者均应给予PRM疗。