Assertion: chest cavity's heart | /r/HasProperty | suspended in the chest cavity
Facets:
value: by the ligamentum arteriosum
type: OTHER
Source sentences:
text: The heart itself is covered with a tough, inelastic membrane called the pericardium and is suspended in the chest cavity by the ligamentum arteriosum, which is formed from the remnants of the ductus arteriosus that was present during fetal circulation.