What is primarily responsible for the articulation of speech sounds?

The articulatory system is primarily responsible for the articulation of speech sounds because it comprises the structures necessary for the shaping and production of these sounds. This system includes the tongue, lips, teeth, alveolar ridge, hard and soft palate, and other oral structures that work together to form distinct speech sounds. The movement and positioning of these articulators allow for the precise modifications of airflow and sound waves, enabling clear production of speech.

While the other systems, such as the respiratory and vocal folds, play significant roles in producing voiced sounds and providing the breath support necessary for speech, they do not directly create the articulation of speech sounds. The auditory system, on the other hand, is primarily involved in hearing and processing sounds rather than producing them. Thus, the articulatory system is the key mechanism behind the formation of speech sounds.