SPHHRNG 2230 Lecture Notes - Lecture 11: Occipital Lobe, Midbrain, Visual Agnosia
13 Sep 2016
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Document Summary
Important to understand normal systems for speech and language to better understand the many ways communication can be disrupted: vocal mechanism. The same muscles and organs that allow us to breathe also are the driving force behind sound production. The larynx, which helps keep us from choking on food, also provides the sound source for our voice. Phonatory system: structures of the larynx, vocal folds, hyoid bone, epiglottis : extremely important because it blocks food from going into our lungs. Flap of cartilage attached to the entrance of the larynx: arytenoid cartilage: vocal folds connect to arytenoids posteriorly. Males < females: changes in intensity are produced by changes in subglottal pressure, try to yell after you exhale. Tongue: occupies most of the space of the oral cavity, composed of several muscles so it can change shape and move in many directions, without precise tongue movements, there can be no articulate speech.
