This document discusses the anatomy and physiology of speech production. It describes how speech sounds are produced by moving air from the lungs through the vocal tract. The vocal tract contains several articulators that are used to produce different consonant and vowel sounds. These articulators include the lungs, trachea, larynx, vocal folds, pharynx, uvula, tongue, soft palate, hard palate, teeth and lips. The document also discusses syllables, phonemes and provides links to learn more about individual speech sounds and articulators.