Term
What are the 3 types of muscle tissue? |
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Definition
Skeletal, cardiac and smooth |
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Term
What is similar about skeletal and cardiac tissue? |
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Definition
They are both elongated muscle cells called muscle fibers |
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Term
Muscle contraction depends on what two myofiliments? |
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Definition
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Term
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Definition
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Term
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Definition
the cytoplasm of a muscle cell |
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Term
what are 3 prefixes that refer to muscle? |
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Definition
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Term
How does skeletal muscle contract? |
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Definition
Rapidly but it tires quickly |
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Term
what is special about cardiac muscle |
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Definition
it has nueral controls that allow the heart to respond to changes in bodily needs |
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Term
where is smooth muscle found? |
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Definition
in the walls of hollow organs |
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Term
what does smooth muscle do? |
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Definition
It regulates blood pressure and forces food down internal body channles |
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Term
what are 4 things that all muscle tissue is |
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Definition
excitable, contractable, extendable, and elastic |
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Term
what is the functions of the skeletal musscle? |
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Definition
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Term
what is the function of cardiac muscle |
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Definition
moves blood through the body |
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Term
What are the 3 connective sheaths? |
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Definition
Endomysium, perimesium, and epimesium |
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Term
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Definition
fine sheath with reticular fibers surrounding the muscle fibers |
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Term
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Definition
connective tissue that surrounds fascicles |
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Term
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Definition
dense regular connectibe tissue that surrounds the entire muscle |
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Term
what is each muscle served by? |
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Definition
1 nerve, 1 artery and 1 or more vein |
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Term
what is each skeletal muscle fiber supplied with? |
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Definition
a nerve ending that controls contraction |
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Term
what do contracting fibers require? |
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Definition
oxygen and nutrience from the arterys |
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Term
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Definition
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Term
how many places are most skeletal muscles attached to the bone |
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Definition
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Term
what 3 organells do fibers contain? |
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Definition
Myofibrils, sarcoplasmic reticulum and t-tubules |
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Term
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Definition
densely packed, rodlike contractile elements |
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Term
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Definition
the smallest contractile unit of a muscle |
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Term
What are thick filaments composed of? |
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Definition
Myosin with a rodlike tail and two globular heads |
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Term
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Definition
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Term
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Definition
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Term
what does the sarcoplasmic reticulum do? |
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Definition
regulates the intacellular calcium levels |
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Term
what does the sarcoplasmic reticulum do? |
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Definition
regulates the intacellular calcium levels |
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