Ostium secundum

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Ostium secundum
Days 33

The ostium secundum (or foramen secundum) is a foramen in the septum primum.

It should not be confused with the foramen ovale, which is a foramen in the septum secundum.

[edit] Clinical significance

An ostium secundum that persists at large size can be a source of atrial septal defects.[1]

[edit] References

  1. ^ ped/1686 at eMedicine

[edit] External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.