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CROSS-SPECIES ANATOMY - ANNOTATIONS

The Basic subset of the UBERON integrated, cross-species anatomy ontology is downloaded weekly from http://berkeleybop.org/ontologies/uberon/basic.obo. For more information about this ontology see the "About" page on the UBERON website at http://uberon.github.io/about.html.
Term:external intercostal muscle
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Accession:UBERON:0005441 term browser browse the term
Definition:An intercostal muscle that aids in quiet and forced inhalation via elevation of the ribs, and expanding the transverse dimensions of the thoracic cavity.
Comment:[homology-note] "Behind the thorax, the lateral group (of muscles in reptiles and mammals) remains essentially as for amphibians. (It breaks into three sheet-like layers: external oblique muscle, the internal oblique, and the transversus). More anteriorly, however, the ribs, now enlarged, penetrate and alter this group of muscles. The transversus is excluded from the thorax and the external and internal obliques become, respectively, the external and internal intercostal muscles, which contribute to the new function of ventilation of the lungs.[well established][VHOG]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0000904", ontology="VHOG", source="ISBN:978-0471090588 Hildebrand M, Analysis of vertebrate structure (1983) p.193", source="http://bgee.unil.ch/"}; [structure-note] "They extend from the tubercles of the ribs behind, to the cartilages of the ribs in front, where they end in thin membranes, the anterior intercostal membranes, which are continued forward to the sternum. Each arises from the lower border of a rib, and is inserted into the upper border of the rib below. In the two lower spaces they extend to the ends of the cartilages, and in the upper two or three spaces they do not quite reach the ends of the ribs. They are thicker than the Intercostales interni, and their fibers are directed obliquely downward and laterally on the back of the thorax, and downward, forward, and medially on the front (the example is often used of sticking one's hands in their pocket and noting the direction of the fingers pointing downward and medially)"
Synonyms:exact_synonym: intercostales externus
 related_synonym: external intercostals;   intercostal muscle external layer;   intercostales externi;   intercostales externi muscle;   intercostales externi muscles;   intercostalis externus;   intercostals external muscle;   musculi intercostales externi
 xref: EHDAA2:0000465;   EHDAA:8260;   EMAPA:18522;   FMA:9756;   MA:0002325;   NCI:C32561;   SCTID:244878003;   UMLS:C1744535;   VHOG:0000904;   Wikipedia:External_intercostal_muscles
 external_ontology: present_in_taxon NCBITaxon:9606


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Path 1
Term Annotations click to browse term
  UBERON ontology 0
    anatomical entity 0
      material anatomical entity 0
        anatomical structure 0
          muscle structure 0
            muscle organ 0
              intercostal muscle 0
                external intercostal muscle 0
Path 2
Term Annotations click to browse term
  UBERON ontology 0
    anatomical entity 0
      material anatomical entity 0
        anatomical structure 0
          multicellular anatomical structure 0
            multicellular organism 0
              embryo 0
                cleaving embryo 0
                  blastula 0
                    presumptive paraxial mesoderm 0
                      paraxial mesoderm 0
                        trunk paraxial mesoderm 0
                          presumptive segmental plate 0
                            presomitic mesoderm 0
                              somite 0
                                dermomyotome 0
                                  myotome 0
                                    skeletal muscle organ, vertebrate 0
                                      axial muscle 0
                                        intercostal pre-muscle mass 0
                                          intercostal muscle 0
                                            external intercostal muscle 0
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