Across
- 3. Broad concave surface of the lung that rests on the diaphragm
- 4. Front portion of the space between the lungs, located between the sternum and pericardium; contains fat, lymph nodes, and connective tissue.
- 6. Vessel that carries oxygen-rich blood from the left lung to the left atrium of the heart
- 7. The smallest lobe of the right lung, located between the superior and inferior lobes
- 9. Outer membrane lining the inner surface of the thoracic cavity, not touching the lungs directly
- 11. Tiny air sacs in the lungs where gas exchange with the blood occurs
- 17. Flat bone located at the center of the chest, forming the front of the rib cage and articulating with the ribs and clavicles
- 18. Large artery that exits the right ventricle and splits into the pulmonary arteries to carry deoxygenated blood to the lungs
- 19. Separates the superior and middle lobes of the right lung
- 20. Separates the superior and inferior lobes of the left lung
Down
- 1. Muscular organ located in the mediastinum that pumps blood through the circulatory system
- 2. Thin membrane that directly covers the surface of the lungs
- 5. Cluster of alveoli at the end of an alveolar duct where gas exchange occurs
- 8. Separates the right lung’s middle and inferior lobes
- 10. Small airway that connects respiratory bronchioles to alveolar sacs, guiding air to gas exchange areas
- 12. Openings between adjacent alveoli that equalize air pressure and allow collateral airflow
- 13. Bundle of bronchi, blood vessels, lymphatics, and nerves entering and leaving the lung at its medial surface
- 14. Gland in the anterior mediastinum important for T-cell maturation, especially active in childhood
- 15. Carries deoxygenated blood from the pulmonary trunk to the left lung
- 16. Rounded, superior tip of the lung that extends above the level of the first rib into the root of the neck