Fourth Ventricle

An irregularly shaped cavity in the RHOMBENCEPHALON, located between the MEDULLA OBLONGATA; the PONS; and the isthmus in front, and the CEREBELLUM behind. It is continuous with the central canal of the cord below and with the CEREBRAL AQUEDUCT above, and through its lateral and median apertures it communicates with the SUBARACHNOID SPACE.

Year introduced: 2000

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Tree Number(s): A08.186.211.140.500

MeSH Unique ID: D020546

Entry Terms:

• Fourth Ventricles
• Ventricle, Fourth
• Ventricles, Fourth
• 4th Ventricle
• 4th Ventricles
• Ventricle, 4th
• Ventricles, 4th
• Quarto Ventricolo
• Quarto Ventricolos
• Ventricolo, Quarto
• Ventricolos, Quarto

Previous Indexing:

• Cerebral Ventricles (1965-1999)

See Also:

• Cerebral Ventriculography

All MeSH Categories
Anatomy Category
Nervous System
Central Nervous System
Brain
Cerebral Ventricles
Fourth Ventricle