smooth muscle

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smooth mus·cle

one of the involuntary muscle fibers of the internal organs, blood vessels, and other body structures not under direct control of the will; contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei and a length of 20-200 mcm, or even longer in the pregnant uterus; although transverse striations are lacking, both thick and thin myofibrils occur; smooth muscle fibers are bound together into sheets or bundles by reticular fibers, and frequently elastic fiber nets are also abundant.
See also: involuntary muscles.

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 mus·cle

(smūdh mŭs'ĕl)
One of the muscle fibers of the internal organs, blood vessels, hair follicles; contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei and a length from 20-200 mcm, or even longer in the pregnant uterus; although transverse striations are lacking, both thick and thin myofibrils occur; such fibers are bound together into sheets or bundles by reticular fibers, and frequently elastic fiber nets are also abundant.
See also: involuntary muscles

smooth muscle

The unstriped involuntary muscle occurring in the walls of blood vessels, the intestines and the bladder, and controlled by the AUTONOMIC NERVOUS SYSTEM and by HORMONES.

smooth muscle

see INVOLUNTARY MUSCLE.

smooth mus·cle

(smūdh mŭs'ĕl)
One of the muscle fibers of the internal organs, blood vessels, hair follicles.
References in periodicals archive ?
Elizabeth Townsend, PhD, of Columbia University and her colleagues studied the effects of 6-gingerol, 8-gingerol and 6-shogoal in human airway smooth muscle tissue samples treated with acetylcholine, a neurotransmitter that causes bronchoconstriction.
Progesterone's activity on uterine smooth muscle may help maintain an early pregnancy, but it's also thought to inadvertantly work on smooth muscle tissue in the mother's intestines, slowing down her rate of digestion and causing numerous problems, including bloating, flatulence and an upset stomach.
These associations may occur in part because vitamin D receptors are found in a range of tissues including vascular smooth muscle tissue, the lining of the interior surface of blood vessels, and heart muscle tissue.
New therapies that still may prove to have some utility include the anti-IgE antibody, omalizumab (Xolair); the anti-tumor necrosis factor agent, etanercept (Enbrel); and an experimental approach of using ultrasound waves to kill smooth muscle tissue in the bronchioles.
New therapies that still may prove to have some utility include the anti-IgE antibody, omalizumab (Xolair); the antitumor necrosis factor agent, etanercept (Enbrel); and an experimental approach of using ultrasound waves to kill smooth muscle tissue in the bronchioles.
Manufactured by Indevus Pharmaceuticals, Sanctura (trospium chloride) tablets help relax smooth muscle tissue found in the bladder.
Their mum, Shirley, suffers from a rare form of cancer called leiomyosarchoma, which attacks the smooth muscle tissue, and she has been receiving chemotherapy as part of her treatment.

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