Smooth muscle

Introduction: Smooth muscle

Description of Smooth muscle

Smooth muscle: 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.involuntary muscles. SYN: unstriated muscle, unstriped muscle, visceral muscle.
Source: Stedman's Medical Spellchecker, © 2006 Lippincott Williams & Wilkins. All rights reserved.

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).
Source: WordNet 2.1

Smooth muscle: nonstriated involuntary muscle; one of the muscles of the internal organs, blood vessels, hair follicles, etc; contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei.
Source: CRISP

Smooth muscle: Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed).
Source: MESH OBO (Open Biomedical Ontologies)

Smooth muscle as an organ

Smooth muscle (organ): Involuntary muscle controlled by the autonomic nervous system.

Smooth muscle (organ): See Smooth muscle (organ information).

More information on organs: Smooth muscle:

• Smooth muscle

Terms associated with Smooth muscle:

Terms Similar to Smooth muscle:

• involuntary muscle

Source - WordNet 2.1

• involuntary muscle

Source - MeSH OBO (Open Biomedical Ontologies)

More specific terms for Smooth muscle:

• myometrium
• vascular smooth muscle

Source - CRISP

• myometrium
• musculus sphincter ani internus

Source - WordNet 2.1

Broader terms for Smooth muscle

• muscle

Source - CRISP

• muscle
• musculus

Source - WordNet 2.1

Hierarchical classifications of Smooth muscle

The following list attempts to classify Smooth muscle into categories where each line is subset of the next.

WordNet 2.1

• muscle,musculus
• contractile organ,contractor
• organ
• body part
• part,piece
• thing
• entity

Source: WordNet 2.1

MESH - OBO (Open Biomedical Ontologies)

• muscle
• musculoskeletal system
• Anatomy

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• Medical Acronymns/Abbreviations

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