- Source: Median aperture
The median aperture (median aperture of fourth ventricle or foramen of Magendie) is an opening at the caudal portion of the roof of the fourth ventricle. It allows the flow of cerebrospinal fluid (CSF) from the fourth ventricle into the cisterna magna. The other openings of the fourth ventricle are the lateral apertures - one on either side. The median aperture varies in size but accounts for most of the outflow of CSF from the fourth ventricle.
Structure
= Relations
=The median foramen on axial images is posterior to the pons and anterior to the caudal cerebellum. It is surrounded by the obex and gracile tubercles of the medulla, tela choroidea of the fourth ventricle and its choroid plexus, which is attached to the cerebellar vermis.
Eponym
The foramen of Magendie is named for François Magendie, who first described it. The term "foramen of Magendie" is commonly used, and this opening is frequently described and illustrated as a foramen in the inferior roof of the fourth ventricle. However, the opening is an aperture, rather than a foramen.
Additional images
References
Kata Kunci Pencarian:
- Selaput otak
- Rentang dinamis
- Garis waktu peristiwa jauh di masa depan
- Median aperture
- Aperture (disambiguation)
- Ventricular system
- Fourth ventricle
- Cisterna magna
- Choroid plexus
- Cerebrospinal fluid
- Pia mater
- Subarachnoid cisterns
- Index of anatomy articles
