Smooth muscle
From Academic Kids
Smooth muscle is a type of non-striated muscle, found within the "walls" of hollow organs; such as blood vessels, bladders, uteri. gastrointestinal tracts, Smooth muscle is used to move matter within the body, via contraction; it generally operates "involuntarily", without nerve stimulation. Smooth muscle cells are joined to each other through gap junctions, and a relatively slow wave of contraction is propagated through the muscle. Smooth muscle cells are uninucleic and can sustain contractions indefinitely.
"Smooth muscle condition" is a condition in which the body of a developing embryo does not create enough smooth muscle for the gastrointestinal system. This condition is fatal.
Anti-smooth muscle antibodies (ASMA) can be a symptom of an auto-immune disorder, such as hepatitis, cirrhosis, or lupus.
See also: skeletal muscle, cardiac muscle, vascular smooth muscle
External links
- BBC (http://news.bbc.co.uk/2/hi/health/3549285.stm) - baby born with smooth muscle condition has 8 organs transplanted
- Third Age (http://www.thirdage.com/health/adam/ency/article/003531.htm) - info on ASMA
| Muscular system |
| Muscular tissue - Cardiac muscle - Skeletal muscle - Smooth muscle - Muscle contraction - List of muscles of the human body |
