science education resource

For K-12 Students • Educators • Homeschool Families • Naturalists

trachea (windpipe)

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The trachea (windpipe), through which air passes on the way to the lungs,  is about 4 inches long (12 cm) and is kept open by tiny rings of stiff cartilage.

trachea (windpipe) has more than 2,000 illustrated animals. Read about them, color them, label them, learn to draw them.