Foundations of Movement Systems and Nervous System

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CHAPTER 03LEARNING OBJECTIVES ISSA | Certified Personal Trainer | 57 1 | Describe the structures and functions of the nervous system. 2 | Describe the structures and functions of the muscular system. 3 | Describe the structures and functions of the skeletal system. 4 | Name the different types of connective tissues and their unique functions. MOVEMENT SYSTEMS CHAPTER 03 | MOVEMENT SYSTEMS The human body is organized in levels of increasing complexity. At the microscopic level, there are subatomic particles (protons, neutrons, electrons), which make up atoms. Atoms group together to form molecules. Molecules make up organelles, which are small cellular structures that perform specific functions within the human cell. Cells aggregate into the various tissues that make up organs and organ systems. Finally, the organ systems, as a collective, comprise the organism that is the human. Chemical Cellular H H H O LEVEL EXAMPLE Tissue Body System Organism OrganOrgan HydrogenAtoms Molecules Water Organelle Cell Nucleus Muscle cell Muscle tissue Heart Muscular system Human being Figure 3.1 The Organizational Levels of the Human Human movement happens when multiple organ systems work together i...