鼓室(tympanic cavity)是中耳最主要的部分,由颞骨岩部、鳞部、鼓部和鼓膜围成,与矢状面近于平行的扁平腔隙。向前借助咽鼓管与鼻咽部相通,向后借助鼓窦入口与鼓窦及乳突气房相通,内侧借鼓岬、前庭窗和蜗窗与内耳相邻,外侧借鼓膜与外耳道相隔。鼓室分上鼓室、中鼓室、下鼓室、后鼓室,鼓室上下径约15mm,前后径与上下径相近,横径(内、外宽度)在上鼓室约6mm、下鼓室约4mm,中鼓室最窄,在鼓脐处仅为2mm。鼓室的容积1~2ml,鼓室内面衬有黏膜,腔内含有听骨、韧带、黏膜皱襞、肌及神经等结构。
n. tympanum ; tympanic cavity
adj. tympanic
misc. ear drum ; cavum tympani
而中鼓室可以基本正常,造成上鼓室型胆脂溜的发病。
But the tenor drum room may basic normal, creates the drum room cholesterin smooth morbidity.
目的探讨自体材料在上鼓室重建及鼓室成形术中的应用。
Objective to discuss the application of autologous materials in reconstructing attic and tympanoplasty.
受感染的骨膜会因为鼓室内脓液使其膨胀而不能正常的移动。
An infected eardrum won't move as it should because the pus presses against it and may make it bulge.
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