Foramen: A natural opening. Although a foramen is usually through bone, it can be an opening through other types of tissue, as with the foramen ovale in the heart. The plural of foramen is foramina. SLIDESHOW Brain Food Pictures: What to Eat to Boost Focus See Slideshow From Brain and Nervous System Resources Relieve Spasticity IssuesAdvice for Living With Myasthenia GravisUnpredictable Days With Myasthenia Gravis Featured Centers What Are the Best PsA Treatments for You?Understanding Biologics 10 Things People With Depression Wish You Knew Health Solutions From Our Sponsors Shot-Free MS Treatment Your Child and COVID-19
