Preferred Label : transversus thoracis;
Uberon definition : The tranversus thoracis lies internal to the thoracic cage, anteriorly. It is a thin
plane of muscular and tendinous fibers, situated upon the inner surface of the front
wall of the chest. It is in the same layer as the subcostal muscles. It arises on
either side from the lower third of the posterior surface of the body of the sternum,
from the posterior surface of the xiphoid process, and from the sternal ends of the
costal cartilages of the lower three or four true ribs. Its fibers diverge upward
and lateralward, to be inserted by slips into the lower borders and inner surfaces
of the costal cartilages of the second, third, fourth, fifth, and sixth ribs. The
lowest fibers of this muscle are horizontal in their direction, and are continuous
with those of the Transversus abdominis; the intermediate fibers are oblique, while
the highest are almost vertical. This muscle varies in its attachments, not only in
different subjects, but on opposite sides of the same subject. [WP,unvetted].;
Origin ID : 0002404;
UMLS CUI : C1744608;
Automatic exact mappings (from CISMeF team)
Currated CISMeF NLP mapping
Semantic type(s)
UMLS correspondences (same concept)
Uberon cross reference
has part
The tranversus thoracis lies internal to the thoracic cage, anteriorly. It is a thin
plane of muscular and tendinous fibers, situated upon the inner surface of the front
wall of the chest. It is in the same layer as the subcostal muscles. It arises on
either side from the lower third of the posterior surface of the body of the sternum,
from the posterior surface of the xiphoid process, and from the sternal ends of the
costal cartilages of the lower three or four true ribs. Its fibers diverge upward
and lateralward, to be inserted by slips into the lower borders and inner surfaces
of the costal cartilages of the second, third, fourth, fifth, and sixth ribs. The
lowest fibers of this muscle are horizontal in their direction, and are continuous
with those of the Transversus abdominis; the intermediate fibers are oblique, while
the highest are almost vertical. This muscle varies in its attachments, not only in
different subjects, but on opposite sides of the same subject. [WP,unvetted].