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Anatomical illustration showing some pulmonary alveoli and the gaseous exchange taking place inside them. Digital illustration.

Stock Photo:
Image ID: 106573124
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Small
375x500 5.2"x6.9" (72dpi) 136 KB
Med
750x1000 2.5"x3.3" (300dpi) 427 KB
Large
2250x3000 7.5"x10.0" (300dpi) 1.8 MB
Super
4500x6000 15.0"x20.0" (300dpi) approx.4.7 MB
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