Foramen of Magendie

Dr Craig Hacking and Dr Jeremy Jones et al.

The foramen of Magendie (also called median aperture) is one of the foramina in the ventricular system and links the fourth ventricle and the cisterna magna. It is one of the three sites that cerebrospinal fluid (CSF) can leave the fourth ventricle and enter the subarachnoid space. The two other openings of the fourth ventricle are termed the foramen of Luschka also called (lateral apertures), one either left and right.

It is located in the midline in the inferior aspect of the roof of the fourth ventricle, immediately nodule of the cerebellum.

Related pathology

A Blake's pouch cyst is caused by a failure of regression of Blake's pouch secondary to the non-perforation of the foramen of Magendie 2.

Anatomy: Brain
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Article information

rID: 5848
Section: Anatomy
Tag: refs, stub
Synonyms or Alternate Spellings:
  • Median aperture of Magendie
  • Median aperture

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Cases and figures

  • Figure 1: diagram of ventricular system
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  • Figure 2: Gray's anatomy illustration
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  • Figure 3: ventricle anatomy diagram
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