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The vocal sack is the flexible throat possessed by most but not all males of the order anura ( frogs and toads). It is inflated to produce their distinctive calls.

The presence or development of the vocal sack is one way of externally determining the sex in many species.

Species lacking the vocal sack include the Fire-Bellied Toad Bombina orientalis , which has a very weak call as a result.

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Frog FAQ with photos.

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Topics: Vocal Sack, Vocal Loading, Vocal Cords, Vocal Music, Vocal...

Vocal loadingVocal loading is the stress inflicted on the speech organs when speaking for long periods. Background Of the working population, about 15% have professions where their voice is their primary tool. That includes professions such as teachers, sales personne	Vocal cordsThe vocal cords also known as vocal folds are composed of twin infoldings of mucous membrane stretched horizontally across the human larynx. They vibrate, modulating the flow of air being expelled from the lungs during phonation. Open during breathing, th	Vocal musicVocal music is music intended for performance mainly by singers. Other musical instruments may be involved, but the choir is the main focus of the piece. Examples of vocal music include choral music, yodeling, Sacred Harp, and Barbershop. Vocal music is p
Vocal stressIn linguistics, stress is the emphasis given to some syllables (usually no more than one in each word). In many languages, long words have a secondary stress a few syllables away from the primary stress. The way stress manifests itself in the speech strea	Vocal fold noduleA vocal fold nodule reduces or obstructs the ability of the vocal folds to create the rapid changes in air pressure which generate human speech. Symptoms include hoarseness of speech, painful speech production, and reduced vocal range. What causes these f	Vocal fold cystVocal fold cysts are collections of fluid in sac-like formations on the vocal folds. Cysts can deteriorate the quality of human speech production and are removable by surgery. See also vocal fold nodule.
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