Ingressive sounds, are speech sounds that are produced by sucking air into the mouth, Egressive sounds, are produced by expelling air from the lungs., The articulators, are the organs of speech., The trachea, ) is a tube that extends from the voice box to the lungs., The larynx, (voice box) is the uppermost part of the trachea that contains the vocal cords or folds and is one of the main sound-producing organs., Vocal folds, (vocal cords) are a muscular pair of elastic folds, which can be moved into various degrees of openness., The glottis, is the space (opening) between the vocal folds, The uvula, is the fleshy lobe at the back of the roof of the mouth., The alveolar ridge, is the hard ridge behind the upper front teeth., The oral cavity, is the space or passageway in the mouth..

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