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Medical Term:

cranial arachnoid mater


Definition: that portion of the arachnoid that lies within the cranial cavity and surrounds the brain and the cranial portion of the subarachnoid space. In several sites, it is relatively widely separated from the pia mater, creating the cranial subarachnoid cisterns.

Synonym(s): arachnoidea mater cranialisTA, arachnoidea mater encephali, arachnoid mater cranialis, arachnoid mater encephali, arachnoid of brain, cerebral part of arachnoid

See Also: arachnoid mater

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