Embryonic Structure
truncus arteriosus
Subclass of:
Fetal Heart
Definitions related to truncus arteriosus:
  • The arterial trunk arising from the fetal heart. During development, it divides into AORTA and the PULMONARY ARTERY.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Truncus arteriosus (TA) is an uncommon congenital cardiovascular anomaly that is characterized by a single arterial trunk arising from the normally formed ventricles by means of a single semilunar valve (ie, truncal valve). In addition, the pulmonary arteries originate from the common arterial trunk distal to the coronary arteries and...
    Medscape
    WebMD, 2025
  • Truncus arteriosus (TRUNG-kus ahr-teer-e-O-sus) is a rare heart defect that's present at birth (congenital). If you or your baby has truncus arteriosus, it means that one large blood vessel leads out of the heart. Normally, there are two separate vessels coming out of the heart.
    Mayo Clinic
    Mayo Foundation for Medical Education and Research, 2025
Try this search on: Farlex, Merriam-Webster, Oxford Dictionary, or Wordnik

This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.