LING 2P90 Lecture Notes - Lecture 19: Pterygoid Processes Of The Sphenoid, Pterygoid Fossa, Hyoid Bone

• School: Brock University
• Department: Linguistics
• Course: LING 2P90
• Professor: Richard Welland

Document Summary

*if the vocal folds are just vibrating, no speech sounds there is just a buzz. Types of teeth: incisors (central and lateral, canines (cuspids, premolars (bicuspids, molars (2 or three sets) [wisdom teeth = 3rd set] Class i (normal) occlusion: mandibular 1st molars ahead of maxillary. Class ii malocclusion (overbite: mandibular 1st molars behind maxillary, often results in over jet" of incisors. Class iii malocclusion (underbite: mandibular 1st molars 1-2 teeth ahead of maxillary. Temporalis muscle: origin: temporal fossa of the skull, insertion: ramus and coronoid process of the mandible, action: raises and retracts the mandible; lateral movement. Masseter muscle: origin: zygomatic arch (cheekbone, insertion: angle, ramus and coronoid process, action: raises and retracts the mandible. Medial pterygoid muscle: a. k. a internal pterygoid muscle, origin: pterygoid fossa (pit), palatine bone and medial surface of lateral pterygoid plate, insertion: ramus and angle of mandible (medial surface, action: raises and protrudes mandible.