Chinese Tone Recognition Based on 3D Dynamic Muscle Information

Table 1

The structures and functions of the major muscles.

Muscle name	Structure	Function
Levator labli superioris	From the medial infraorbital margin to the skin and muscle of the upper lip	Elevates the upper lip
Levator anguli oris	From the canine fossa, below the infraorbital foramen	Draws the angle of the mouth
Zygomaticus	Extends from the zygomatic arch to the corners of the mouth	Draws the angle of the mouth
Buccinator	From the alveolar processes of the maxilla and mandible and the temporomandibular joint	Pulls back the angle of the mouth
Orbicularis oris	Composed of four independent quadrants, gives an appearance of circularity	Encircles the mouth
Depressor anguli oris	From the tubercle of the mandible to the modiolus of the mouth	Depresses the angle of mouth