Upper Respiratory System

Description

Presented in right-facing profile, the upper airway is traced from the nasal cavity through the nasopharynx, past the soft palate into the oropharynx and hypopharynx, then inferiorly into the larynx and cervical trachea. The hard palate forms the floor of the nasal cavity, while the tongue occupies the oral cavity anterior to the oropharynx, clarifying the shared pharyngeal space for respiration and deglutition. Posteriorly, the pharyngeal wall lies immediately anterior to the cervical vertebral column, and the esophagus begins posterior to the larynx as the trachea descends anteriorly. Spatial relationships read cleanly in this lateral orientation. A side view like this is the one clinicians default to when explaining where obstruction occurs. Adenoid hypertrophy in the roof of the nasopharynx, tonsillar enlargement at the oropharyngeal isthmus, and posterior tongue displacement during sedation each compromise different segments, and the illustration makes those levels easy to separate. Intubation and airway adjunct placement depend on understanding how the oral cavity, epiglottic inlet, and laryngeal axis align in profile, and why “anterior airway” anatomy can make glottic exposure difficult. Clear. Direct. Use this artwork in gross anatomy and head and neck modules, speech-language and swallowing physiology teaching, and patient-facing materials on sleep apnea, pharyngitis, laryngitis, and upper airway infections. It also fits procedure manuals and slide decks covering bag-mask ventilation, laryngoscopy, endotracheal intubation, and nasopharyngeal airway sizing in adult women. Anatomical accuracy verified by SciePro's Medical Advisory Board.