Internal thoracic artery
The internal thoracic artery ("internal thoracic artery ") is one of the branches of the subclavian artery . It rises superiorly of the heart and then moves into the chest cavity to caudal , while the breastbone is closely adjacent.
If not according to the Paris nomenclature , the internal thoracic artery is sometimes also called internal mammary artery . In hospital jargon , the abbreviation IMA from the English nomenclature ( internal mammary artery ) is used, especially in the field of bypass surgery. Accordingly left internal mammary artery (LIMA) and right internal mammary artery (RIMA) used.
The pericardiacophrenic artery arises from the initial part of the internal thoracic artery . The arteriae intercostales anteriores branch off in each intercostal space (referred to in animals as arteriae intercostales ventrales ), which pull backwards in the respective intercostal space and supply the muscles there. Approximately in the middle of the rib cage, the internal thoracic artery divides into the musculophrenic artery , which supplies the diaphragm , and the superior epigastric artery (in animals the cranial epigastric artery ). The superior epigastric artery pierces the chest wall and then runs caudally in the rectus sheath. It supplies the abdominal wall and anastomoses with the inferior epigastric artery , which branches off from the external iliac artery .
literature
- Uwe Gille: Cardiovascular and immune system, Angiologia. In: Franz-Viktor Salomon, Hans Geyer, Uwe Gille (Ed.): Anatomy for veterinary medicine. 2nd, revised and expanded edition. Enke, Stuttgart 2008, ISBN 978-3-8304-1075-1 , pp. 404-463.