Trachea

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Trachea is a common term for an airway through which respiratory air passes in organisms. In vertebrates, it is held open by up to 20 C-shaped rings of cartilage, and may also be known as the "windpipe."

Trachea may refer to:

• Vertebrate trachea, in terrestrial vertebrates, such as birds and mammals
• Invertebrate trachea, in terrestrial invertebrates, such as insects and crustaceans

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