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Published byLuke Douglas Modified over 9 years ago
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Muscle Tissue: composed of cells (‘fibers’) specialized for contraction – Skeletal
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Muscle Tissue: composed of cells (‘fibers’) specialized for contraction – Skeletal – Cardiac
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Muscle Tissue: composed of cells (‘fibers’) specialized for contraction – Skeletal – Cardiac – Smooth
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Muscle Tissue: composed of cells (‘fibers’) specialized for contraction – Skeletal – Cardiac – Smooth All muscle tissues have a reticular fiber matrix
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Skeletal Muscle Tissue – Composed of closely packed skeletal muscle cells
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Skeletal Muscle Tissue – Features of skeletal muscle cells: Striated Can be very long Multinucleated Cannot divide, but new cells can be produced from “satellite cells” Require neural stimulation
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Skeletal Muscle Tissue – Features of skeletal muscle cells: Striated Can be very long Multinucleated Cannot divide, but new cells can be produced from “satellite cells” Require neural stimulation Voluntary
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– Functions of Skeletal Muscle Tissue Voluntary movement
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– Functions of Skeletal Muscle Tissue Voluntary movement Forms some sphincters
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– Functions of Skeletal Muscle Tissue Voluntary movement Forms some sphincters Protection of some organs Stabilization of some joints Posture Heat production
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Cardiac muscle tissue –Features of cardiac muscle cells Striated Branched Intercalated disks Cannot divide No satellite cells Contract rhythmically
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Cardiac muscle tissue – Features of cardiac muscle cells Striated Branched Intercalated disks Cannot divide No satellite cells Contract rhythmically No neural stimulation required
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Smooth muscle tissue – Composed of smooth muscle cells – Features of smooth muscle cells Non-striated May not require neural stimulation Can divide Involuntary
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– Functions of smooth muscle Internal movement of food, etc. Blood vessel diameter Bronchiole diameter Pupil diameter
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Neural Tissue – Composed of neurons and glial cells (neuroglia)
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Neural Tissue – Features of neurons
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Neural Tissue – Features of neurons Cell body (soma)
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Neural Tissue – Features of neurons Cell body (soma)
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Neural Tissue – Features of neurons Cell body (soma) Dendrites
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Neural Tissue – Features of neurons Cell body (soma) Dendrites Axons (nerve fibers)
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Neural Tissue – Features of neurons Cell body (soma) Dendrites Axons (nerve fibers) Cannot divide (?)
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– Neural tissue arranged as ‘grey matter’ and ‘white matter’
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