The middle and posterior mediastina. Left side. (Lig. arteriosum labeled at upper right.)
Heart of dog.
left ventricle
anterior interventricular sulcus
right ventricle
conus arteriosus
pulmonary artery
Ligamentum arteriosum
aortic arch
brachiocephalic artery
left subclavian artery
right auricle
left auricle
fat
pulmonary vein
Details
From
left pulmonary artery
To
descending aorta
Identifiers
Latin
Ligamentum arteriosum
TA98
A12.2.01.202
TA2
4092
FMA
13421
Anatomical terminology
[edit on Wikidata]
The ligamentum arteriosum (arterial ligament), also known as Botallo's ligament, Harvey's ligament, and Botallo's duct,[1] is a small ligament attaching the aorta to the pulmonary artery.[clarification needed] It serves no function in adults but is the remnant of the ductus arteriosus formed within three weeks after birth.[clarification needed]
Structure
At the superior end, the ligamentum attaches to the aorta—at the final part of the aortic arch (the isthmus of aorta) or the first part of the descending aorta.[2] On the other, inferior end, the ligamentum is attached to the top of the left pulmonary artery.[3]
The ligamentum arteriosum is closely related to the left recurrent laryngeal nerve, a branch of the left vagus nerve.[4] After splitting from the left vagus nerve, the left recurrent laryngeal loops around the aortic arch behind the ligamentum arteriosum, after which it ascends to the larynx.[4]
Function
In adults, the ligamentum arteriosum has no useful function. It is a vestige of the ductus arteriosus, a temporary fetal structure that shunts blood from the pulmonary arteries to the aorta. This significantly reduces the volume of blood ciruclating through the lungs, which are inactive in the womb. The ductus arteriosus becomes the ligamentum arteriosum within three weeks of birth, so that deoxygenated blood can be selectively circulated to the lungs for more efficient oxygenation of the blood.
Clinical significance
The ligamentum arteriosum plays a role in major trauma. It fixes the aorta in place during abrupt motions, consequently potentially resulting in a ruptured aorta. Such ruptures are very rare.
If the ductus arteriosus fails to close after birth, a condition known as patent ductus arteriosus can develop. This is a fairly common birth defect. Sufferers may have operations that leave them with no ligamentum arteriosum.
See also
Ligamentum teres
Ligamentum venosum
References
^Pirie, Egle (February 28, 2022). "Ligamentum arteriosum and ductus arteriosus". Kenhub. Retrieved March 12, 2022.
^Monvadi B. Srichai (2007). David P. Naidich; et al. (eds.). Computed tomography and magnetic resonance of the thorax (4th ed.). Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins. p. 100. ISBN 978-0-7817-5765-2.
^D. Cheitlin, Melvin; C. Ursell, Philip (2011). "Cardiac Anatomy". In Chatterjee, Kanu (ed.). Cardiology: An Illustrated Textbook. JP Medical Ltd. p. 6. ISBN 978-93-5025-275-8.
^ abGoodin, Douglas S. (2014-01-01), Aminoff, Michael J.; Josephson, S. Andrew (eds.), "Chapter 2 - Neurologic Complications of Aortic Disease and Surgery", Aminoff's Neurology and General Medicine (Fifth Edition), Boston: Academic Press, pp. 25–48, doi:10.1016/b978-0-12-407710-2.00002-3, ISBN 978-0-12-407710-2, S2CID 78356226, retrieved 2020-11-14
External links
Anatomy photo:21:st-1200 at the SUNY Downstate Medical Center
v
t
e
Fetal vascular remnant ligaments
Heart
Ligamentum arteriosum
Liver
Round ligament of liver
Ligamentum venosum
Umbilical
Medial umbilical ligament
see also Median umbilical ligament and Lateral umbilical fold
Aortic coarctation (AC) is a congenital aortic narrowing. We describe for the first time the findings obtained by unenhanced post mortem computed tomography (PMCT) in a case where the death was caused by cardiac tamponade from a ruptured aneurysmal dilatation of the ascending aorta and the aortic ar
Asymptomatic Right Circumflex Aortic Arch Associated with Ventricular Septal Defect and Biscuspid Aortic Valve.
Tissot C1, Didier D, Beghetti M, Kalangos A, Myers PO.
The heart surgery forum.Heart Surg Forum.2015 Jun 26;18(3):E114-5. doi: 10.1532/hsf.1313.
INTRODUCTION: Anomalies of the aortic arch are frequent congenital malformations, which rarely form partial or complete vascular rings. A rare form of vascular ring is the encircling, or circumflex, aortic arch.CASE REPORT: A 19-month-old boy, with no respiratory symptoms, was referred for ventricul
Video-assisted thoracoscopic division of vascular rings.
Lee JH1, Yang JH1, Jun TG1.
The Korean journal of thoracic and cardiovascular surgery.Korean J Thorac Cardiovasc Surg.2015 Feb;48(1):78-81. doi: 10.5090/kjtcs.2015.48.1.78. Epub 2015 Feb 5.
This study reports our early experience with thoracoscopic division of vascular rings. Three patients were reviewed; their ages at surgery were 25 months, 4 years, and 57 years. All patients were suffering from complete vascular rings involving combinations of the right aortic arch, left ligamentum
:a cord of tissue that connects the pulmonary trunk and the aorta and that is the vestige of the ductus arteriosus Seen and Heard What made you want to look up ligamentum arteriosum? Please tell us where you read or heard it ...
lig·a·men·tum ar·te·ri·o·'sum [TA] fibrous remnant of the ductus arteriosus extending between the aortic arch and the pulmonary trunk. Synonym(s): arterial ligament, Botallo ligament ligamentum arteriosum See arterial ligament.
