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Upper respiratory tract 2 Illustration and Icon
Upper respiratory tract 2
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A mid-sagittal anatomical illustration of the human head and neck shows the upper respiratory tract (URT), including the nasal cavity, hard/soft palate, nasopharynx, oropharynx, laryngopharynx, and epiglottis leading toward the laryngeal inlet. In the biological hierarchy, these mucosa-lined passages are regional structures within the respiratory system of Homo sapiens. In anatomy and respiratory physiology/otolaryngology, the URT conducts inspired air, warms and humidifies it, filters particulates with respiratory epithelium, and provides resonance for speech while coordinating with the oral cavity during swallowing.
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