yawning

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Women yawning

Why Do We Yawn?

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Marriage. A couple getting married during a church wedding ceremony. (religion, ceremony, bride, groom)

The Seven Sacraments of the Roman Catholic church

Two chicks near an egg with a white background (poultry, chick, chickens, birds).

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July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.

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Small, white rat (genus Rattus) on a glass table. (rodent, laboratory, experiment)

Cruel and Unusual Punishments: 15 Types of Torture

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

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Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society

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yawning

behavior

Also known as: yawn

Learn about this topic in these articles:

resonation of the vocal organ

In speech: Intensity
…automatic reflexes of laughing and yawning illustrate the resonator action of the vocal organ. Together with a widely opened mouth, flat tongue, elevated palate, and maximally widened pharynx, the larynx assumes a lowered position with maximally elevated epiglottis. This configuration is ideal for the unimpeded radiation of the vocal cord…
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