articulator/articulatory/articulation ɑːˈtɪkjəleɪtə ɑːˈtɪkjələtəri ɑːˌtɪkjəˈleɪʃən The concept of the articulator is a very important one in phonetics. We can only produce speech sound by moving parts of our body, and this is done by the contraction of muscles. Most of the movements relevant to speech take place in the mouth and throat area (though we should not forget the activity in the chest for breath control), and the parts of
the mouth and throat area that we move when speaking are called articulators. The principal articulators are the tongue, the lips, the lower jaw and the teeth, the velum or soft palate, the uvula and the larynx. It has been suggested that we should distinguish between active articulators (those which can be moved into contact with other articulators, such as the tongue) and passive articulators which are fixed in place (such as the teeth, the hard palate and the alveolar ridge). The branch of phonetics that studies articulators and their actions is called articulatory phonetics. | 
