How to Draw Lungs

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The lungs are among the largest organs in the human body. These muscular air sacs are located within the chest. When air is brought into the lungs, the body takes in oxygen and removes carbon dioxide from the blood. The heart then pumps the oxygenated blood to the body.

Mammals, birds, reptiles, a few fish, and some snails also have lungs. Other animals, such as insects, don't have lungs like ours. Many breathe through their skin, taking in air through spiracles and extracting oxygen through the "pages" of their "book lungs."

Lungs serve an important function, and they must be taken care of. Dust, smoke, and germs can damage the lungs. For that reason, it's important to wash your hands frequently and wear personal protective equipment such as a mask or respirator when you might be exposed to toxic or harmful pollutants. Some animals have lung protection built-in - for example, camels have a network of hairs in their noses that prevent dust from entering their lungs during a sandstorm!

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Would you like to draw a pair of cartoon lungs? This easy, step-by-step cartoon drawing tutorial is here to show you how. All you will need is a pencil, an eraser, and a sheet of paper. You may also wish to color your diagram in shades of pink, blue, and red.

If you liked this tutorial, see also the following drawing guides: Human Heart, Rib Cage, and Mouth and Tongue.

Step-by-Step Instructions for Drawing Lungs

How to Draw Lungs: Step 1

1. Draw a pair of vertical curved lines that diverge at each end. Connect them at the top using a narrow oval. This forms the trachea or windpipe which connects the lungs to the throat.

How to Draw Lungs: Step 2

2. Draw a pair of curved lines from the bottom of the trachea. This forms the primary bronchi, which is a large air passageway.

How to Draw Lungs: Step 3

3. Draw a pair of curved lines opposite the first, forming the remaining bronchi.

How to Draw Lungs: Step 4

4. Texture the trachea and bronchi with bands of curved lines.

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How to Draw Lungs: Step 5

5. Draw an irregular shape around and passing behind one of the bronchi. This outlines the first lung.

How to Draw Lungs: Step 6

6. Draw another irregular shape to mirror the first, forming the remaining lung.

How to Draw Lungs: Step 7

7. Draw pairs of narrowly spaced curved lines extending from the sides and tip of one of the bronchi. These are the secondary bronchi.

How to Draw Lungs: Step 8

8. Draw pairs of curved lines extending from the remaining bronchi, forming secondary bronchi.

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How to Draw Lungs: Step 9

9. Draw branching curved lines extending from the primary and secondary bronchi. These represent tertiary bronchi and bronchioles.

How to Draw Lungs: Step 10

Color your cartoon lungs. Then, check out our people drawing guides, where you can learn to draw the human body inside and out.

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The Complete Lungs Drawing Tutorial in One Image

How to Draw Lungs

Printable Drawing Tutorial

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