The Lungs in Your Body

The Lungs in Your Body book cover — LET’S FIND OUT THE HUMAN BODY THE LUNGS IN YOUR BODY CHRISTINE FIGORITO

The Lungs in Your Body — page 1 — 4 YOUR LUNGS Try to sit perfectly still Notice how your chest rises and falls That is because your lungs are working to keep you breathing Breathing is involuntary Your lungs do it without your thinking about it Lungs are baglike organs or body parts All animals that have a backbone and breathe air like you have lungs When an animal inhales breathes in air ﬁlled with Breathing is an example of an involuntary action Without the body’s involuntary actions other actions like standing smiling and taking a picture would be impossible

The Lungs in Your Body — page 2 — 5 oxygen ﬂows into the lungs The body needs a steady supply of oxygen to live When an animal exhales breathes out a different gas ﬂows out of the lungs Other organs in the body help with breathing For example the brain sends signals to the lungs to make sure the breathing never stops Involuntary means not done on purpose Breathing is an involuntary action because the body does it automatically The left lung is smaller than the right lung This makes room for the heart to ﬁt in between them

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