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Printable hand-drawn Human Lungs coloring page
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Anatomy

Human Lungs

A pair of human lungs with the windpipe branching into bronchi and airways, the diaphragm beneath, and blank labels — an educational coloring page.

ThemeAnatomy
FormatPDF · PNG · A4
Best forAll ages
AddedJun 2026
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#anatomy#lungs#respiratory

Take a deep breath and color how you breathe on this human lungs coloring page. It shows a pair of lungs with the windpipe at the top branching into two bronchi and then into smaller airways inside each lung, with the dome of the diaphragm beneath and blank label lines pointing to the parts. The branching airways look a bit like an upside-down tree, giving the page a satisfying pattern to color in. The two lungs are not quite the same size — the left one is a little smaller to leave room for your heart, a fun detail to point out while coloring. This page suits a respiratory-system lesson for school or homeschool and works for a wide range of ages. Color the left and right lungs in two tones and the branching airways in another so the air's path is clear. Print it on US Letter or A4.

Coloring Tips

  • Two-tone the lungs — give the left and right lungs slightly different shades so each side stands out.
  • Follow the branches — color the windpipe and airways one bright color to trace the path air travels in.
  • Shade the diaphragm — give the dome beneath the lungs its own tone to show the muscle that powers each breath.

Frequently asked questions

Why is one lung smaller than the other?
The left lung is a little smaller to make room for the heart, which sits slightly to the left — a fun fact to share while coloring.
What is the dome at the bottom of the page?
That is the diaphragm, the muscle beneath the lungs that moves down to pull air in and up to push it out with each breath.

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