meninges
/mi'nindʤi:z/
Definition
- Noun:
- The three protective membranes that surround the brain and spinal cord: The meninges are a system of membranes that enclose and protect the central nervous system. They consist of three layers: the dura mater (outer layer), the arachnoid mater (middle layer), and the pia mater (inner layer).
Usage Examples
- Noun:
- Inflammation of the meninges is called meningitis.
- The cerebrospinal fluid circulates within the meninges.
- A head injury can cause bleeding within the meninges.
Advanced Usage
- "Leptomeninges": A term referring specifically to the pia mater and arachnoid mater layers of the meninges together.
- The infection had spread to the leptomeninges.
Variants and Related Words
- Meningeal (adj): Pertaining to the meninges.
- The patient had meningeal irritation.
- Meningitis (n): Inflammation of the meninges.
- Bacterial meningitis is a serious medical emergency.
- Meningioma (n): A type of tumor that arises from the meninges.
- The scan revealed a small meningioma.
Synonyms
- Brain membranes: A descriptive synonym.
- Dura mater, Arachnoid mater, Pia mater: The names of the individual layers that constitute the meninges.
Noun
-
a membrane (one of 3) that envelops the brain and spinal cord
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