Respiratory / VISUAL EXPLAINER
Which Secretory Cells Protect Your Small Airways?
Club cells are non-ciliated secretory cells in bronchiolar epithelium. Their domed apices face the airway lumen, and their secretions contribute to protecting the small-airway lining alongside other epithelial cells.
READ THE IMAGE
What the illustration shows
Ivory and gold medical poster titled Club cells: small-airway secretory support. A lung locator leads to an opened terminal bronchiole. Gold dome-topped non-ciliated club cells alternate with teal ciliated cells in a single epithelial layer. A larger strip labels the club cell, apical secretory granules, ciliated neighbor and basal lamina. A lower closeup shows gold secretion dots leaving a club-cell dome beside cilia. The text says club-cell secretions contribute to epithelial protection. Gold AllHumanBody.com and the full project slogan appear below. Colors and scales are illustrative.
How to interpret this poster
- Cell proportions, granule counts, dome sizes, basal-lamina thickness and vesicle paths are illustrative, not ultrastructure.
- The locator does not identify a specific airway generation, cell census or species-wide distribution.
- Qualitative protective contribution does not mean complete protection from toxins or smoking safety. No unlimited regeneration, detailed detoxification or alveolar surfactant claim.
- AI-assisted educational illustration; not physician certification, microscopy, a diagnosis or individualized medical advice.
- Fine annotations need enlargement; the full description provides an accessible text alternative.
- Display the full uncropped illustration; do not trim titles, legends or boundary annotations.
AI-assisted educational illustration, adapted into web-sized images without changing its composition. This is general education, not an individual diagnosis or treatment recommendation.
EVIDENCE / CONTEXT
Sources and what they support
- Duke Histology: Respiratory system ↗
Non-ciliated dome-topped bronchiolar cells distinct from ciliated neighbors.
- Digital Histology: Bronchiole ↗
Apical dome, secretory granules and protective epithelial role.