By Melissa Stewart

This enticing sequence teaches readers in regards to the physique and its many gross features.

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Extra info for Blasts of Gas: The Secrets of Breathing, Burping, and Passing Gas (The Gross and Goofy Body)

Sample text

Some people have trouble breaking down a natural sugar called lactose. They fart a lot when they eat ice cream or yogurt, or when they drink milk. A Farting Falsity Ever heard the saying: “Whoever smelt it, dealt it”? It’s not true. The farter usually smells the stench last. Because gas blasts away from the culprit’s body, the stinky scent takes a while to reach his or her nose. People aren’t the only animals that fart. You might have been unlucky enough to have smelled a dog passing gas. What a stinker!

Methane—A gas that contributes to global warming; the main ingredient in natural gas. molt—To shed an old outer covering that is worn out or too small. nasal mucus—Mucus produced in the nasal cavity; snot. oxygen—An invisible gas that animals need to live. pharynx—A tube that connects the nose and mouth to the larynx. It is sometimes called the throat. phlegm—Mucus produced in the lungs. protein—A molecule that speeds up chemical reactions, repairs damaged cells, and builds new bones, teeth, hair, muscles, and skin.

Respiratory system—The group of body organs that takes in oxygen and gets rid of carbon dioxide. rib—One of the bones that supports the front of the chest. rumen—The first stomach chamber a ruminant’s food enters. ruminant— A large, plant-eating mammal with a four-chambered stomach. swim bladder—A body organ that helps many fish species control their depth in the water. trachea—The tube that connects the lungs and the throat. vocal cord—A flap of tissue in the larynx that plays a role in producing the human voice.

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