Across
- 4. portion of lung that rests on diaphragm
- 7. segments, 10 in right & 8 to 10 in left, that is supplied by individual tertiary bronchus & branch of pulmonary artery & vein
- 9. branching of bronchioles that are the last portion of conduction portion of respiratory system
- 10. fissure that divides lung into superior, middle, & inferior
- 13. decreases surface tension with alveolus & prevents collapse of alveoli
- 14. indentation made by heart in medial surface of left lung
- 16. branching of respiratory bronchioles
- 18. circulation that conducts blood to & from gas exchange surface of lungs
- 19. branching of terminal bronchioles
- 20. alveolar cells of simple squamous epithelial cells that promote rapid diffusion of gases
- 21. concave region of lung housed on mediastinal surface where bronchi, pulmonary & lymphatic vessels, & nerves pass
- 22. all structures within hilum of lung
Down
- 1. circulation that is a component of systemic circulation delivering blood directly to & from bronchi & bronchioles
- 2. anterior indented region of left lung
- 3. smaller lung sue to heart, two lobes separated by oblique fissure
- 5. alveolar cells of almost cuboidal shape that produce pulmonary surfactant
- 6. contraction of smooth muscle resulting in narrowing of bronchioles
- 8. fissure that divides lung into superior & inferior lobes
- 11. three lobes of lung separated by horizontal & oblique fissures
- 12. relaxation of smooth muscle results in widening of bronchioles
- 15. small saccular outpocketing where alveolar ducts end, where respiratory gases diffuse between blood & air in lungs
- 17. projection of lung slightly superior & posterior to clavicle