Pulmonary trunk
The pulmonary trunk ( Latin for "lung trunk ") is an elastic artery close to the heart and the common trunk of the arteries leading to the lungs ( arteriae pulmonales ), which transport oxygen-poor blood . The blood vessel begins with a slight swelling ( conus arteriosus ) in the right ventricle . The pulmonary valve ( Valva trunci pulmonalis ) is located inside the initial section .
The trunk bends caudally and crosses past the aorta on the left . Here both vessels are connected by the arterial ligament (Botalli's ligament), a strand of connective tissue . The ligamentum arteriosum represents the former ductus arteriosus , which normally closes immediately after birth and which in the fetus conducts the blood from the pulmonary trunk into the aorta and thus largely shortens the pulmonary circulation .
Then the pulmonary trunk divides into the right and left pulmonary arteries ( arteria pulmonalis dextra and sinistra ) at the bifurcatio trunci pulmonalis .
literature
- Theodor H. Schiebler (Ed.): Anatomie. Histology, history of development, macroscopic and microscopic anatomy, topography. Taking into account the item catalog. 9th, completely revised edition. Springer, Heidelberg 2005, ISBN 3-540-21966-8 .
- 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.