| 1. |
(noun) muscle tissue that does not appear striated under the microscope; has the form of thin layers or sheets |
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Related Words: muscle, muscular tissue |
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| 2. |
(noun) a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart) |
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Synonyms: involuntary muscle |
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Related Words: muscle, musculus, musculus sphincter ani internus |
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