Examine anatomy and physiology of structures involved in speech, language, hearing, and swallowing in a laboratory setting. Explore anatomical and physiological mechanisms of respiration, phonation, articulation, and hearing; and the central nervous system and blood supply to the speech and hearing mechanism. Communication Sciences and Disorders 158L and Speech, Language and Hearing Sciences 158L may not both be counted. One and one-half laboratory hours a week for one semester.