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Muscle Cell Contraction

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In this animated activity, learners examine muscle cell contraction and relaxation and consider the role of calcium ions.

The Zygomycetes

By Barbara Liang

In this animated and interactive object, learners examine the lifecycle of fungi including asexual and sexual reproduction. Learners test their knowledge by identifying a diagram and by completing a crossword puzzle.

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The Appendicular Skeleton (Screencast)

In this screencast, learners examine the bones of the appendicular skeleton.
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The Ascomycetes

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In this interactive and animated object, learners examine the characteristics, ecological importance, and lifecycle of the ascomycetes of the fungi kingdom.
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The Two-Neuron Knee-Jerk Reflex Arc

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In this interactive object, learners examine the neuron pathway into and out of the spinal cord. They complete the activity by testing their knowledge of vocabulary and the location of spinal cord structures.
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Ask a Question
Posted by zeinab zeaiter on 12/27/2017 8:07:38 AM Votes 0.00 Thumps Up Thumps Down

can someone explain the isometric contraction

1 Comment

Isometric contraction is defined as a contraction that is not associated with any movement. ... Assessment of the nature of isometric contraction in terms of its causative force is difficult because no displacement occurs except within the muscle itself and at a microscopic level.

 Posted by Felicia Paniagua on 2/23/2021 8:40:44 PM Reply
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  • Isometric contraction is defined as a contraction that is not associated with any movement. ... Assessment of the nature of isometric contraction in terms of its causative force is difficult because no displacement occurs except within the muscle itself and at a microscopic level.

    0 Comments
    Posted by Felicia Paniagua on 2/23/2021 8:40:35 PM Votes 0.00 Thumps Up Thumps Down
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this is very usefull!!

Posted by mingyang zu on 6/4/2009 12:00:00 AM Reply

Excellent! This animation really helped me see how it all works--its difficult to comprehend the workings of something so tiny, this really helped make it clear! Thanks!

Posted by Jenny Midbrod on 2/2/2009 12:00:00 AM Reply

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