人们认为这些沟槽有助于将水从嘴中输送到鳃裂外，从而减少水的阻力。
It is thought that these grooves help to channel water through the mouth and out the gill slits, thereby reducing water resistance.
它们有一条推进用的尾巴，咽及鳃裂。
Iv. They present a propulsive tail, pharynx and branchial openings.
手术切除仍为治疗鳃裂畸形的主要方法。
Consulsion: Surgical resection was the main method to treat the congenital branchial cleft cysts.
目的探讨原发性鳃裂癌临床特点及预后。
Objective To analyze the clinical feature and prognosis of primary branchial carcinoma.
结论：使用药物保守治疗第一鳃裂瘘管继发感染复发率高。
Conclusion:The recurrent rate of secondary infection with medicine therapy is high.
结论：使用药物保守治疗第一鳃裂瘘管继发感染复发率高。
Conclusion:The recurrent rate of secondary infection with medicine therapy is high.
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