Normal Swallow vs. Aspiration: Medical Illustration Explained #3725529 (License: Personal Use)

The image displays six sequential sagittal cross-sections of the human head and neck, illustrating the path of liquid during drinking. The top row shows the initial phase of ingestion and pharyngeal transit, while the bottom row contrasts normal swallowing (epiglottis covering larynx) with aspiration (liquid bypassing epiglottis into trachea). Key structures-including the soft palate, epiglottis, vocal folds, and esophagus-are color-coded for clarity.

This image is commonly used in medical education, speech-language pathology training, dysphagia assessment guides, and patient handouts to explain aspiration risk and safe swallowing strategies. It serves users seeking to understand or prevent aspiration pneumonia, especially in elderly or neurologically impaired populations.