Image: Comstock-book-lungs
Size of this preview: 800 × 475 pixels. Other resolutions: 320 × 190 pixels | 1,600 × 950 pixels.
Original image (1,600 × 950 pixels, file size: 393 KB, MIME type: image/png)
Description: Diagram of spider book lungs. (1) lung slit, (2) space filled with blood, (3) leaves of the book lung.
Usage Terms: Public domain
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