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Exquisite air sac histological traces in a hyperpneumatized nanoid sauropod dinosaur from South America | Scientific Reports
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Acoustic analysis of primate air sacs and their effect on vocalization: The Journal of the Acoustical Society of America: Vol 126, No 6
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a) Shows the bony ostium connecting the nasolacrimal sac to the nasal... | Download Scientific Diagram
![Elementary text-book of zoology. 368 CHORD AT A. by small bony rings; those of the bronchi, except the first, are of cartilage. At the junction of the trachea and bronchi is Elementary text-book of zoology. 368 CHORD AT A. by small bony rings; those of the bronchi, except the first, are of cartilage. At the junction of the trachea and bronchi is](https://c8.alamy.com/comp/RDGFCP/elementary-text-book-of-zoology-368-chord-at-a-by-small-bony-rings-those-of-the-bronchi-except-the-first-are-of-cartilage-at-the-junction-of-the-trachea-and-bronchi-is-the-syrinx-the-true-organ-of-voice-in-the-birds-the-bronchus-passes-into-the-lung-and-there-branches-its-branches-emerge-from-the-lung-to-open-into-the-air-sacs-already-noticed-the-lungs-themselves-are-dense-rather-small-and-closely-pressed-against-the-ribs-they-lie-dorsal-to-the-ccelom-and-their-ventral-face-only-is-covered-by-peri-toiieum-the-air-taken-into-the-lungs-can-pass-freely-into-the-air-sacs-the-bird-RDGFCP.jpg)