smooth muscle(redirected from unstriped muscle)
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Muscle tissue that contracts without conscious control, having the form of thin layers or sheets made up of spindle-shaped, unstriated cells with single nuclei and found in the walls of the internal organs, such as the stomach, intestine, bladder, and blood vessels, excluding the heart.
(Anatomy) muscle that is capable of slow rhythmic involuntary contractions: occurs in the walls of the blood vessels, alimentary canal, etc. Compare striped muscle
[so called because there is no cross-banding on the muscle]
involuntary muscle tissue in the walls of viscera and blood vessels, consisting of nonstriated, spindle-shaped cells.
Involuntary muscle without the striated fibers of skeletal muscle. It automatically operates internal organs such as the stomach, bladder, and blood vessels.
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|Noun||1.||smooth muscle - 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)|
myometrium - the smooth muscle forming the wall of the uterus
musculus sphincter ani internus - an internal ring of smooth muscle formed by circular fibers of the rectum
|2.||smooth muscle - muscle tissue that does not appear striated under the microscope; has the form of thin layers or sheets|
smooth muscle cell - cells of the smooth muscles