Ligamentum arteriosum
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Ligament: Ligamentum arteriosum | ||
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The middle and posterior mediastina. Left side. (Lig. arteriosum labeled at upper right.) | ||
Heart of dog. 1. left ventricle 2. anterior interventricular sulcus 3. right ventricle 4. conus arteriosus 5. pulmonary artery 6. Ligamentum arteriosum 7. aortic arch 8. brachiocephalic artery 9. left subclavian artery 10. right auricle 11. left auricle 12. fat 13. pulmonary vein |
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Gray's | subject #141 545 | |
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Dorlands/Elsevier | l_09/12491658 |
The ligamentum arteriosum is a small ligament between the pulmonary artery and aortic trunk. It is a nonfunctional vestige of the ductus arteriosus, and is formed within three weeks of birth.
The ligamentum arteriosum is closely related to the recurrent laryngeal nerve, a branch of the left vagus nerve.