The sound-conducting apparatus in the middle-ear of domestic fowls includes the membrana tympani, columella, musculus tensor tympani and several ligaments.
鸭的中耳传声器官主要包括：鼓膜、听骨、张肌及韧带四部分。
The tensor tympani muscle, middle meningeal artery and mandibular nerve are good landmarks to predict and identify the horizontal segment of the internal carotid artery.
鼓膜张肌、脑膜中动脉、下颌神经是预测和辨认颈内动脉水平的良好标志。
The tensor tympani muscle, middle meningeal artery and mandibular nerve are good landmarks to predict and identify the horizontal segment of the internal carotid artery.
鼓膜张肌、脑膜中动脉、下颌神经是预测和辨认颈内动脉水平的良好标志。
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