loading...| Preferred Name |
smooth muscle tissue |
| Synonyms |
visceral muscle tissue smooth muscle non-striated muscle textus muscularis levis; textus muscularis nonstriatus visceral muscle involuntary muscle textus muscularis nonstriatus |
| 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 |
| database_cross_reference |
ZFA:0005274 EMAPA:32717 VHOG:0001246 AEO:0000141 BTO:0001260 WBbt:0005781 XAO:0000175 galen:SmoothMuscleTissue EFO:0000889 OpenCyc:Mx4rvvSS3pwpEbGdrcN5Y29ycA CALOHA:TS-0943 MAT:0000303 TAO:0005274 GAID:167 galen:SmoothMuscle FBbt:00003525 MESH:D009130 MIAA:0000303 AAO:0010244 EV:0100378 UMLS:C1267092 MA:0000166 EHDAA2:0003141 FMA:14070 http://linkedlifedata.com/resource/umls/id/C1267092 |
| depicted_by |
http://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_exact_synonym |
smooth muscle non-striated muscle involuntary muscle textus muscularis nonstriatus |
| 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 |
| imported from | |
| in_subset |
http://purl.obolibrary.org/obo/uberon#vertebrate_core http://purl.obolibrary.org/obo/uberon/core#uberon_slim http://purl.obolibrary.org/obo/uberon/core#pheno_slim http://purl.obolibrary.org/obo/uberon/core#efo_slim |
| label |
smooth muscle tissue |
| notation |
UBERON:0001135 |
| 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. |
| textual 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]. |
| subClassOf |