Muscle and Neural Tissue
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Last updated 8:11 PM on 2/12/23
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23 Terms
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Actin and Myosin
Filaments within muscle fibers
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Contraction
Function of muscle fibers
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Skeletal Muscle Tissue
forms the flesh of the body, cells are long, cylindrical, striated (striped) and multi-nucleated (peripheral) with many mitochondria, have blunt ends
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Location of Skeletal Muscle Tissue
\-Combined with connective tissues and neural tissue in skeletal muscles
\-Attached to skeleton or skin
\- tongue
\-Attached to skeleton or skin
\- tongue
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Function of Skeletal Muscle Tissue
\-Moves or stabilizes the position of the skeleton
\-guards entrances and exits to the digestive, respiratory, and urinary tracts
\-generates heat
\-protects internal organs
\-Voluntary muscle
\-guards entrances and exits to the digestive, respiratory, and urinary tracts
\-generates heat
\-protects internal organs
\-Voluntary muscle
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Skeletal Muscle Tissue
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Cardiac Muscle Tissue
cells are short, branched, single nucleus, with some striations, cells connected by intercalated discs (joints between cells)
\-gap junctions allow ions to pass freely from cell to cell (rapid electrical impulse so cells beat in unison)
\-gap junctions allow ions to pass freely from cell to cell (rapid electrical impulse so cells beat in unison)
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Location of cardiac muscle tissue
Heart
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Function of cardiac muscle tissue
\-Circulates blood by causing the heart to pump
\-maintains blood pressure
\-involuntary muscle
\-maintains blood pressure
\-involuntary muscle
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Cardiac Muscle Tissue
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Smooth Muscle Tissue
\-Cells are short, spindle-shaped and nonstriated, single, central nucleus
\-When contracts, cavity becomes smaller, when relax they expand
\-Moves slower than other muscle types
\-When contracts, cavity becomes smaller, when relax they expand
\-Moves slower than other muscle types
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Location of smooth muscle tissue
Found in the walls of hollow organs: digestive, respiratory, urinary and reproductive organs, blood vessels, skin (arrector pili)
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Function of smooth muscle tissue
\-Moves food, urine and reproductive tract secretions
\-controls diameter of respiratory passageways
\- regulates diameter of blood vessels
\-Involuntary muscle
\-controls diameter of respiratory passageways
\- regulates diameter of blood vessels
\-Involuntary muscle
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Smooth Muscle Tissue
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Location of Neural Tissue
Brain, spinal cord, nerves
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Function of Neural Tissue
Communicate through electrical impulses
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Neuron
cell body with dendrites, long axon
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Neuroglia
designed to insulate, support, and protect neurons
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Neurons and Neuroglia
The 2 types of neural tissue
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Neuron
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Neuroglia
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Intercalated discs
joins between cells
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Gap junctions
allow ions to pass freely from cell to cell (rapid electrical impulse so cells beat in unison)
