Cisterna magna

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Cisterna magna
Diagram showing the positions of the three principal cisterns in the brain. The cisterna magna is labelled as cisterna cerebellomedullaris at the lower right.
Details
SystemVentricular
Identifiers
Latincisterna magna,[1]
cisterna cerebellomedullaris posterior[1]
MeSHD002946
TA98A14.1.01.208
TA25402
FMA83721
Anatomical terms of neuroanatomy

The cisterna magna (posterior cerebellomedullary cistern,

subarachnoid space of the spinal canal.[3]

The cisterna magna contains the two vertebral arteries, the origins of the two posterior inferior cerebellar arteries, the glossopharyngeal nerve (CN IX), vagus nerve (CN X), accessory nerve (CN XI), hypoglossal nerve (XII), and choroid plexus.[3] The vertebral artery and posterior inferior cerebellar artery of either side pass traverse either lateral portion of the cistern.[2]

Etymology

The Terminologia Anatomica classifies the terms cisterna magna and posterior cerebellomedullary cistern as synonyms.[4] It does not recognise the term "cerebellomedullary cistern" (neither as a synonym or distinct structure)[5] but acknowledges the lateral cerebellomedullary cistern as a distinct structure.[6]

The 42nd edition of Gray's Anatomy (2020) and 12th edition of Last's Anatomy (2011) recognise the cisterna magna and cerebellomedullary cistern as synonyms, and do not describe a separate lateral cerebellomedullary cistern.[2][3]

According to the 8th edition of the Clinical Oriented Anatomy (2018), the cerebellomedullary cistern is subdivided into the posterior cerebellomedullary cistern (cisterna magna), and the lateral cerebellomedullary cistern.[7]

Clinical significance

The

posterior arch of atlas.[2]

References

  1. ^ a b c "Anatonomina". www.terminologia-anatomica.org. Retrieved 2023-08-01.
  2. ^
    ISBN 978-0-7295-3752-0
    .
  3. ^
    OCLC 1201341621.{{cite book}}: CS1 maint: location missing publisher (link
    )
  4. ^ "Anatonomina". www.terminologia-anatomica.org. Retrieved 2023-08-01.
  5. ^ "Anatonomina". www.terminologia-anatomica.org. Retrieved 2023-08-01.
  6. ^ "Anatonomina". www.terminologia-anatomica.org. Retrieved 2023-08-01.
  7. ISBN 978-1-4963-4721-3
    .
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