Health
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Introduction to the Muscular System
Muscle structure All muscle cells are specialized for contraction. When these cells contract, they shorten and pull a bone to…
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The Functions of the Skeletal System
Functions of the skeleton Provides a framework that supports the body; the muscles that are attached to bones move the…
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Organization and General Plan of the Body
Organs An organ is a group of tissues precisely arranged so as to accomplish specific functions. Examples of organs are…
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Cell| What Is A Cell Definition, Structure, Types, Functions
Cell structure Despite their many differences, human cells have several similar structural features: a cell membrane, a nucleus, and cytoplasm…
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Some Basic Chemistry of health
Elements All matter, both living and not living, is made of elements, the simplest chemicals. An element is a substance…
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