The lungs are the major organs of the respiratory system, that are divided into the upper respiratory tract and the lower respiratory tract. The lungs are divided into sections or lobes. The right lung has three lobes and is slightly larger than the left lung, which has two lobes.

Museum-quality posters made on thick and durable matte paper.

• Paper thickness: 10.3 mil
• Paper weight: 5.57 oz/y² (189 g/m²)
• Giclée printing quality
• Opacity: 94%

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