smooth muscle

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smooth muscle

n.
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.

smooth muscle

n
(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]

smooth′ mus′cle


n.
involuntary muscle tissue in the walls of viscera and blood vessels, consisting of nonstriated, spindle-shaped cells.

smooth muscle

Involuntary muscle without the striated fibers of skeletal muscle. It automatically operates internal organs such as the stomach, bladder, and blood vessels.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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)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)
muscle, musculus - one of the contractile organs of the body
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
muscular tissue, muscle - animal tissue consisting predominantly of contractile cells
smooth muscle cell - cells of the smooth muscles