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How is cardiac muscle similar to smooth muscle?
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Asked 5/8/2012 9:34:21 AM
Updated 5/12/2012 5:22:21 PM
3 Answers/Comments
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User: How is cardiac muscle similar to smooth muscle?





Weegy: Compared to skeletal muscle, smooth-muscle cells are small. They are spindle-shaped, about 50 to 200 microns long and only 2 to 10 microns in diameter. They have no striations or sarcomeres. [ Instead, they have bundles of thin and thick filaments (as opposed to well-developed bands) that correspond to myofibrils. In smooth-muscle cells, intermediate filaments are interlaced through the cell much like the threads in a pair of "fish-net" stockings. The intermediate filaments anchor the thin filaments and correspond to the Z-disks of skeletal muscle. Unlike skeletal-muscle cells, smooth-muscle cells have no troponin, tropomyosin or organized sarcoplasmic reticulum. ]
Expert answered|smp0784|Points 3113|

Question
Asked 5/8/2012 9:34:21 AM
Updated 5/12/2012 5:22:21 PM
3 Answers/Comments
This conversation has been flagged as incorrect.
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8
Cardiac muscle is similar to smooth muscle in that both are involuntary.
Added 5/8/2012 10:34:06 AM
This answer has been confirmed as correct and helpful.
Confirmed by Janet17 [11/15/2014 8:22:58 AM]
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@smp0784-the user asked for a comparison of cardiac and smooth muscle not skeletal and smooth.
Added 5/8/2012 10:35:17 AM
@Frankie17851- Thank you for the correction.
Added 5/12/2012 5:22:21 PM
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The walls of veins have the same three layers as the ________.
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The walls of veins have the same three layers as the arteries.
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1 Answer/Comment
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Updated 5/8/2012 10:39:22 AM
1 Answer/Comment
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Added 5/8/2012 10:39:22 AM
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2 Answers/Comments
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