font size

Definition of Foramen ovale

Foramen ovale: An oval opening between the two upper chambers of the heart (the atria) that is a normal feature of the fetal and neonatal (newborn) circulation. The foramen ovale normally closes on its own by 3 months of age.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=3504
Last Editorial Review: 4/3/2002

Drug Medical Dictionary of Terms by Letter

Top RxList Drug News


WebMD Daily

Get breaking medical news.