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  2. Pia mater - Wikipedia

    en.wikipedia.org/wiki/Pia_mater

    Pia mater (/ ˈ p aɪ. ə ˈ m eɪ t ər / or / ˈ p iː ə ˈ m ɑː t ər /), [1] often referred to as simply the pia, is the delicate innermost layer of the meninges, the membranes surrounding the brain and spinal cord. Pia mater is medieval Latin meaning "tender mother". [1] The other two meningeal membranes are the dura mater and the ...

  3. Meningitis - Wikipedia

    en.wikipedia.org/wiki/Meningitis

    Meningitis can be life-threatening because of the inflammation's proximity to the brain and spinal cord; therefore, the condition is classified as a medical emergency. [ 2 ] [ 8 ] A lumbar puncture , in which a needle is inserted into the spinal canal to collect a sample of cerebrospinal fluid (CSF), can diagnose or exclude meningitis.

  4. Arachnoiditis - Wikipedia

    en.wikipedia.org/wiki/Arachnoiditis

    Arachnoid inflammation can lead to many painful and debilitating symptoms which can vary greatly in each case, and not all people experience all symptoms. [ 2 ] [ 3 ] [ 4 ] Chronic pain is common, including neuralgia , while numbness and tingling of the extremities can occur with spinal cord involvement, and bowel, bladder, and sexual ...

  5. Meninges - Wikipedia

    en.wikipedia.org/wiki/Meninges

    The dura mater is attached to the skull, whereas in the spinal cord, the dura mater is separated from the vertebrae by a space called the epidural space, which contains fat and blood vessels. The arachnoid is attached to the dura mater, while the pia mater is attached to the central nervous system tissue.

  6. Mollaret's meningitis - Wikipedia

    en.wikipedia.org/wiki/Mollaret's_meningitis

    Mollaret's meningitis is a recurrent or chronic inflammation of the protective membranes covering the brain and spinal cord, known collectively as the meninges.Since Mollaret's meningitis is a recurrent, benign (non-cancerous), aseptic meningitis, it is also referred to as benign recurrent lymphocytic meningitis.

  7. Leptomeningeal cancer - Wikipedia

    en.wikipedia.org/wiki/Leptomeningeal_cancer

    Tumor cell infiltration is associated with spongy changes in the white matter of the spinal cord beneath the pia mater with demyelination, axonal swelling, and macrophage infiltration. Transverse necrosis of the spinal cord is usually marked with bleeding from tumor growth in the subarachnoid space and is the result of compression by the ...

  8. Conus medullaris - Wikipedia

    en.wikipedia.org/wiki/Conus_medullaris

    After the spinal cord tapers out, the spinal nerves continue to branch out diagonally, forming the cauda equina. [1] The pia mater that surrounds the spinal cord, however, projects directly downward, forming a slender filament called the filum terminale, which connects the conus medullaris to the back of the coccyx. The filum terminale provides ...

  9. Denticulate ligaments - Wikipedia

    en.wikipedia.org/wiki/Denticulate_ligaments

    The bases of denticulate ligaments arise in the pia mater and are firmly attached to the arachnoid mater and dura mater at the apex. [2] The denticulate ligaments extend across the subarachnoid space between anterior nerve roots and posterior nerve roots, piercing the intervening spinal arachnoid mater to reach the dura.