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spiracle n.1.【動物;動物學】(昆蟲類的)呼吸孔,氣門;(鯨類...

spiraea

Closing apparatus of a spiracle 氣門閉器

The spiracles are guarded by bristles which aid in filtering dust and other foreign matter from the air before it enters the tracheae . 氣門由剛毛保護,這種叫毛在空氣進入氣門以前,幫助過濾空氣中的灰塵和其他異物。