Muscular+System

=Muscular System =

Grade 8 Human Systems

 * Purpose:** This section introduces students to the major parts of the muscular system. It describes the three types of muscle tissue- smooth muscle, cardiac muscle, and skeletal muscles. This section also describes how muscles move bones, and compares aerobic exercise to resistance exercise. Furthermore, students will examine the interconnectedness between the nervous system and muscle functioning, and will explore afflictions that impact the functioning of the muscles.


 * Activities:** When participating in the unit, the students do simple resistance exercises to compare the strength of flexor and extensor muscles.


 * Alternate Activity:**
 * 1) Students look at the video regarding strength at [|The Discovery Channel Human Body Explorer]
 * 2) Working as a group, students identify times in which their bodies had to perform beyond the limits you thought possible.
 * 3) Students then describe the processes involved with their actions.
 * 4) The students present their findings on the science wiki.


 * Resources:** The students use the [|Human Body Systems and Health] text by Holt, Reinhart, and Winston for one source of information. However, the primary sources of information are retrieved from the following websites:
 * [|The Discovery Channel Human Body Explorer]
 * [|The BBC Interactive Human Body]
 * [|Muscles Tutorial]
 * [|How Muscles Work]
 * [|Howstuffworks.com]

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