Chapter 2 - Anatomy
In this chapter, McCoy discusses the physical anatomy of the human body as it relates to singing. He focuses primarily on the muscles and how they all work through contraction, are symmetrically paired, and work interactively with each other. An important term he mentions is muscular antagonism, which occurs "when two or more sets of muscles contract in opposing directions." He also mentions the three types of muscle found in the human body: Cardiac (only in the heart), smooth (found in the blood vessels and certain organs), and skeletal muscles (all other muscle). The first two types are controlled involuntarily, and the last type is controlled through voluntary (but not direct) action. Basically all of the information from this chapter is important for us to know as voice teachers. Understanding the muscular system and how the skeletal muscles of phonation, respiration, and articulation work for singers are essential for helping our students fully access and utilize their instruments.
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