Rhomboid fossa

The rhomboid fossa is the shallow, diamond shaped depression on the dorsal surface of the pons and medulla oblongata that  forms the floor of the fourth ventricle 1. It is covered by grey matter which is continuous with the spinal cord.

It may be divided into two parts:

Anatomy: Brain

Anatomy: Brain

Article information

rID: 66471
Section: Anatomy
Synonyms or Alternate Spellings:

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Cases and figures

  • Rhomboid fossa (illustration)
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