In all cases, it is important for you to know the basic anatomy of the vocal tract. Click image for more detail. The place of articulation is the point where obstruction occurs. Typically, it is the point on the palate where the placement of the tongue blocks the airstream. A basic knowledge of speech milestones helps to detect dificulties at an early age.
Early detection is essential to determining appropriate interventions.
William L. Coleman, Professor emeritus , UNCG Department of Anthropology .