Respiratory / VISUAL EXPLAINER
Which Blood Vessels Feed Your Airways?
Bronchial arteries provide a systemic supply to conducting-airway walls, while pulmonary arteries carry blood from the right heart toward gas-exchange vessels. These pathways have connections rather than being completely isolated circuits.
READ THE IMAGE
What the illustration shows
Navy-and-gold medical poster titled Which Blood Vessels Feed Your Airways? A cut-open pale bronchus has red arterial branches in its wall, separate from the hollow airway lumen. Nearby, a blue pulmonary artery enters an alveolar capillary mesh and a red pulmonary vein leaves toward the left heart. A lower wall cross-section shows small enclosed vessels. A second panel contrasts systemic bronchial supply with right-heart pulmonary supply, joined by a dashed connector labeled vascular connections, schematic. A takeaway notes their different main jobs and connections. Gold AllHumanBody.com and the full slogan form the footer.
How to interpret this poster
- No exclusive nourishment claim for all lung cells, fixed arterial origin, branch count, flow fraction or universal venous drainage route.
- Dashed connector denotes communication, not measured direction or a specific arterial shunt; red/blue code relative oxygenation, not actual blood color.
- Wall thickness, cartilage, vessel sizes and alveolar placement are illustrative. No transplant, embolism or bleeding advice.
- 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
- Digital Histology: Respiratory blood supply overview ↗
Pulmonary gas-exchange circulation and bronchial vessels in conducting-airway walls.
- NIOSH: Manual of Spirometry in Occupational Medicine ↗
Dual blood supply and vascular connections; stable gross-anatomy background only.
- The anatomy and physiology of the bronchial circulation ↗
Variable origins, airway supply and pulmonary vascular anastomoses; review abstract.
Evidence correspondence is limited to the abstract.