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7 Cards in this Set

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  • Back

Define Muscle Tissue

Composed of elongated cells called muscle cells, myofibres, or muscle fibers specialized for contraction.

How is muscle tissue classified and what are the 2 classifications

-Based on the appearance of contractile cells


1) Striated muscle
2) Smooth muscle

Define and list the types of striated muscle

Striated muscles - cells exhibit cross striations at the light microscope level.




Cardiac - involuntary muscle found in the walls of the heart




Skeletal comprised of the voluntary muscle mass of the body

Define Smooth muscle

Cells do not have cross striations

List and Describe the 3 muscle tissue sheaths

Epimysium - dense connective tissue sheath covering the entire muscle




Perimysium - derives from epimysium and surrounds the bundles of fascicles of muscle cells




Endomysium - delicate layer of reticular fibers and extracellular matrix surrounding each muscle cell

What do blood vessels use the muscle sheaths for?

To reach the interior of the muscle

Characteristics of Muscle fibers

-Post mitotic multinucleated syncytium


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