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Muscle Contraction loading

Muscle fibers move in response to nerve signals by activating molecular servos that contract the fibers.

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Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
  • Read
    Muscle Contraction

    Muscle Contraction

    by CK-12 //at grade
    Describes how muscles contract according to the sliding filament theory.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Video
    Muscle Contraction

    Muscle Contraction

    by CK-12 //at grade
    The sliding filament theory is demonstrated in this interesting, brief animation.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Video
    Myosin and Actin

    Myosin and Actin

    by CK-12 //at grade
    Discusses actin, myosin, and muscle contraction while demonstrating how myosin and actin interact to produce mechanical force.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Video
    Tropomyosin and Troponin and Their Role in Regulating Muscle Contraction

    Tropomyosin and Troponin and Their Role in Regulating Muscle Contraction

    by CK-12 //at grade
    Provides information about tropomyosin and troponin and their role in regulating muscle contraction. Also answers how calcium ion concentration dictates whether a muscle is contracting or not.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Video
    Role of the Sarcoplasmic Reticulum in Muscle Cells

    Role of the Sarcoplasmic Reticulum in Muscle Cells

    by CK-12 //at grade
    The role of the sarcoplasmic reticulum in controlling calcium ion concentrations within the muscle cell is shown in this video.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Lesson Plan
    Muscles In Motion

    Muscles In Motion

    by CK-12 //at grade
    Students understand the various muscle movements by flexing their arm muscles in an experiment. Lesson plan includes a list of materials, procedures, adaptation for older students, discussion questions, evaluation, extensions, suggested readings and web resources.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Lesson Plan
    Skeletal Muscle Structure and Contraction at the Molecular Level

    Skeletal Muscle Structure and Contraction at the Molecular Level

    by CK-12 //at grade
    Link downloads a Microsoft Word file. Lesson includes an introduction, list of materials, link to a Prezi presentation, interactive online filament labeling activity, Youtube Video, assessment (to create a model of muscle contraction),
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Activity
    Contraction in Action

    Contraction in Action

    by CK-12 //at grade
    Scroll down 2/3 of the way down the webpage to get to the "Project" heading. Activity includes description of needed materials, instructions, method of assessment and extension activity. There is no handout. It is recommended to have a handout with parameters to guide students.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Downloadable Quiz
    Muscle Contraction Quiz

    Muscle Contraction Quiz

    by CK-12 //at grade
    Quiz about Muscle Contraction
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  • Practice
    Muscle Contraction Practice
    Estimated7 minsto complete

    Muscle Contraction Practice

    by CK-12 //at grade
     
     
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  • Critical Thinking
    Muscle Contraction Discussion Questions

    Muscle Contraction Discussion Questions

    by CK-12 //at grade
    A list of student-submitted discussion questions for Muscle Contraction.
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    This indicates how strong in your memory this concept is
  • Real World Application
    Stemming Disease

    Stemming Disease

    by CK-12 //at grade
    Covers stem cells and some of their medical uses through the example of Parkinson’s disease and neurology.
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    This indicates how strong in your memory this concept is
  • Study Guide
    Muscular System Study Guide

    Muscular System Study Guide

    by CK-12 //at grade
    This study guide reviews the three types of muscles (skeletal, cardiac, smooth) and muscle contraction (sliding filament theory).
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