March 9, 2010

Video: Muscles for Locomotion

What would the skeletal system be without muscles to move our bones. Muscles are an essential part of what makes us humans and in this lecture, I talk about the three types of muscle, and more importantly, how they work. How does muscle contraction happen at the cellular level? Why does the heart beat on its own? What is actin and myosin and what happens to our muscles in response to exercise? These are a few of the questions I answer in this lecture.

This is section 34.3 in the textbook Biology: The Dynamics of Life and is part of the chapter on Protection, Locomotion and Support. There are a few audio “glitches” in this video, but not too much to compromise your understanding of the material. Enjoy!



  • The 3 Types of Muscle
  • How Muscles Work
  • Muscles during exercise

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