Module 6 Intro

Module 6—The Motor System and Homeostasis

In This Module

Lesson 1—Movement and Muscle Tissue

If you are to understand exactly how you move around, you need to study how muscles convert the chemical energy of ATP into kinetic energy—the energy of movement. The intricate and precise movements of a dancer, a basketball player, or an artist occur through the coordinated actions of contracting and relaxing muscles. However, not all motion results in people moving their bodies around their physical environment. Different kinds of muscles are used in different body systems.

• How are the roles of cardiac, smooth, and striated muscles different?
• How do specialized structures in muscles cause muscle contraction?
• What is the relationship between energy use by muscle cells and heat production?

Lesson 2—Muscles, Health, and Homeostasis

From what you know of biological systems, no single system will exist on its own. And the absence or impairment of a system will affect all other systems. The motor system is no different. The motor system helps your body to maintain homeostasis. When a condition impairs the motor system, other systems are affected. As a result, many technologies have been developed to treat or prevent impairments to the motor system.

• What are the main complications of the muscular system, and what technologies can be used to treat these conditions?
  
  
• How does the motor system support and interact with other body functions, including digestive, circulatory, respiratory, and excretory systems?

Module Assessment

You will be graded for your work in the Lesson 1 Assignment and Lesson 2 Assignment.

In addition, you will be required to complete the Module 6 Project and research facts about mitochondrial myopathy. This project will be worth 15 marks. When you have finished Lesson 1 and Lesson 2, go to the Module Assessment section of the Module 6 Summary to complete the project.