loading...| Preferred Name | smooth muscle tissue | |
| Synonyms |
visceral muscle tissue visceral muscle textus muscularis levis; textus muscularis nonstriatus smooth muscle textus muscularis nonstriatus involuntary muscle non-striated muscle |
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| Definitions |
Muscle tissue which is unstriated, composed primarily of smooth muscle fibers surrounded by a reticulum of collagen and elastic fibers. Smooth muscle differs from striated muscle in the much higher actin/myosin ratio, the absence of conspicuous sarcomeres and the ability to contract to a much smaller fraction of its resting length[GO]. |
|
| ID |
http://purl.obolibrary.org/obo/UBERON_0001135 |
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| composed primarily of | ||
| database_cross_reference |
NCIT:C12437 MIAA:0000303 AAO:0010244 EMAPA:32717 BTO:0001260 AEO:0000141 EFO:0000889 ZFA:0005274 Wikipedia:Smooth_muscle_tissue VHOG:0001246 XAO:0000175 UMLS:C1267092 MESH:D009130 TAO:0005274 CALOHA:TS-0943 WBbt:0005781 EHDAA2:0003141 galen:SmoothMuscle MAT:0000303 galen:SmoothMuscleTissue EV:0100378 FMA:14070 GAID:167 MA:0000166 |
|
| definition |
Muscle tissue which is unstriated, composed primarily of smooth muscle fibers surrounded by a reticulum of collagen and elastic fibers. Smooth muscle differs from striated muscle in the much higher actin/myosin ratio, the absence of conspicuous sarcomeres and the ability to contract to a much smaller fraction of its resting length[GO]. |
|
| depiction |
https://upload.wikimedia.org/wikipedia/commons/3/3b/Glatte_Muskelzellen.jpg |
|
| external_definition |
Involuntary muscle tissue consisting of uninucleate spindle-shaped fibers.[AAO] A non-striated muscle that is composed of spindle-shaped cells. Smooth muscle usually is organized into sheets that line cavitated organs.[TAO] |
|
| has part | ||
| has_exact_synonym |
smooth muscle textus muscularis nonstriatus involuntary muscle non-striated muscle |
|
| has_narrow_synonym |
visceral muscle tissue visceral muscle |
|
| has_obo_namespace |
uberon |
|
| has_related_synonym |
textus muscularis levis; textus muscularis nonstriatus |
|
| homology_notes |
(...) the first bilateral animals possessed only smooth muscles with the molecular repertoire necessary to build a striated muscle. (...) it is more parsimonious to regard striated muscle cells as a sister cell type to the smooth muscle cells. In this scenario, striated and smooth muscles would have arisen in the stem lineage that led to the Nephrozoa (i.e. all Bilateria exclusive the acoelomorphs) (Hejnol et al., 2009), from an 'acoel-like' smooth muscle, by segregation and divergence of functions and through differential recruitment of additional genes[well established][VHOG] |
|
| id |
UBERON:0001135 |
|
| in_subset |
http://purl.obolibrary.org/obo/uberon/core#efo_slim http://purl.obolibrary.org/obo/uberon/core#vertebrate_core |
|
| label |
smooth muscle tissue |
|
| notation |
UBERON:0001135 |
|
| overlaps | ||
| prefLabel |
smooth muscle tissue |
|
| terminology_notes |
GO uses visceral and smooth interchangeably. However visceral can also be used in the sense of the viscera. Many fly annotations to smooth muscle terms. If we want to be inclusive of insects have to have a general definition of tissue that includes cells. |
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| disjointWith | ||
| subClassOf |