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16 Cards in this Set
- Front
- Back
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Muscles have similar terminology:
Myo = sarco = |
muscle
flesh |
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What are the characteristics of ALL MUSCLE CELLS?
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-elongated and called fibers.
-shorten (contract) because of MYOFILAMENTS. |
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What does SKELETAL MUSCLE do?
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attach to bones or as in some facial muscles, to skin.
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Multinucleated cells with very OBVIOUS striations.
Voluntary control and can be slow or fast contraction. These belong to which muscle cell? |
SKELETAL MUSCLE
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Strength is added to the muscle cells by being bundled together with?
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CONNECTIVE TISSUE
(part of skeletal muscle) |
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Found only in the heart
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Cardiac muscle
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Cardiac muscle is striated like skeletal tissue, but is...
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INVOLUNTARY
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These are joined together by special junctions called....
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CARDIAC FIBERS are joined together by INTERCALATED DISCS.
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Heart is regulated by an internal pace maker but can be stimulated by what in times of need?
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the NERVOUS SYSTEM
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Has NO striations and is involuntary.
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Smooth muscle
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Where can smooth muscle be found?
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in walls of veins, uterus, hollow organs.
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Is smooth muscle single nucleated or multinucleated?
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SINGLE
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What is irritability?
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Muscle have the ability to receive and respond to stimuli.
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The ability of a muscle cell to shorten as a result of the STIMULUS is called...
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CONTRACTILITY
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NON MOVEMENT =
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THE ORIGIN
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MOVEMENT =
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INSERTION
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