Preferred Label : internal intercostal muscle;
Uberon definition : An intercostal muscle that aids in forced expiration (quiet expiration is a passive
process).;
Uberon synonym : intercostales internus;
Uberon related term : intercostal muscle internal layer;
Uberon 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];
Uberon Structure note : The internal intercostals are responsible for the depression of the ribs decreasing
the transverse dimensions of the thoracic cavity. the innermost intercostal muscle,
the deep layers of the internal intercostal muscles which are separated from them
by the neurovascular bundle. Both the external and internal muscles are innervated
by the intercostal nerves, and are provided by the intercostal arteries and intercostal
veins. Their fibers run in opposite directions;
Origin ID : 0002403;
UMLS CUI : C1744536;
Automatic exact mappings (from CISMeF team)
Semantic type(s)
UMLS correspondences (same concept)
Uberon cross reference
develops from
has part
An intercostal muscle that aids in forced expiration (quiet expiration is a passive
process).