Communication Sciences and Disorders 4411A/B Lecture Notes - Lecture 3: Speech Production, Record Producer, Mastication
4 Jan 2021
School
Department
Professor
Document Summary
Communication sciences and disorders 4411a lecture 2a: anatomy of speech. Identify the major anatomical structures related to speech: describe the three systems involved in the production of speech. 2: describe the physiological functions and processes of the structures involved in speech, understand how impairments in 1+ structure can contribute to a communication disorder. Allows exchange of gases to sustain life. Inhalation (active process: diaphragm contracts (moves down, rib cage expands (moves up and out) 3: negative pressure created relative to outside air, air rushes in through mouth or nose (or both) to equalize air pressure. Exhalation (generally a passive process: diaphragm relaxes, chest wall returns to resting state. Active (forced) exhalation contraction of abdominal and ribcage muscles. Attached in the front to the thyroid cartilage. Attached in the back to the two arytenoid cartilages. Glottis = area between two vocal cords. Elevates and contracts during swallow: voice (phonation) Created by vibration of two vocal folds (chords) in larynx.
