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  2. Arachnoid mater - Wikipedia

    en.wikipedia.org/wiki/Arachnoid_mater

    The arachnoid mater (or simply arachnoid) is one of the three meninges, the protective membranes that cover the brain and spinal cord. It is so named because of its resemblance to a spider web . The arachnoid mater is a derivative of the neural crest mesoectoderm in the embryo.

  3. Meninges - Wikipedia

    en.wikipedia.org/wiki/Meninges

    The middle element of the meninges is the arachnoid mater, or arachnoid membrane, so named because of its resemblance to a spider web. It cushions the central nervous system. This thin, transparent membrane is composed of fibrous tissue and, like the pia mater, has an outer layer of tightly packed flat cells, forming the arachnoid barrier. [8]

  4. Arachnoid cyst - Wikipedia

    en.wikipedia.org/wiki/Arachnoid_cyst

    Patients with arachnoid cysts may never show symptoms, even in some cases where the cyst is large. Therefore, while the presence of symptoms may provoke further clinical investigation, symptoms independent of further data cannot—and should not—be interpreted as evidence of a cyst's existence, size, location, or potential functional impact on the patient.

  5. Cranial ultrasound - Wikipedia

    en.wikipedia.org/wiki/Cranial_ultrasound

    Cranial ultrasound is a technique for scanning the brain using high-frequency sound waves. It is used almost exclusively in babies because their fontanelle (the soft spot on the skull) provides an "acoustic window". A different form of ultrasound-based brain scanning, transcranial Doppler, can be used in any age group.

  6. Arachnoid granulation - Wikipedia

    en.wikipedia.org/wiki/Arachnoid_granulation

    Arachnoid granulations (also arachnoid villi, and pacchionian granulations or bodies) are small outpouchings of the arachnoid mater and subarachnoid space into the dural venous sinuses of the brain. The granulations are thought to mediate the draining of cerebrospinal fluid (CSF) from the subarachnoid space into the venous system .

  7. Myelography - Wikipedia

    en.wikipedia.org/wiki/Myelography

    Historically the procedure involved the injection of a radiocontrast agent into the cervical or lumbar spine, followed by several X-ray projections. Today, myelography has largely been replaced by the use of MRI scans , although the technique is still sometimes used under certain circumstances – though now usually in conjunction with CT ...

  8. Should You Use Ice or Heat for Your Back Pain? - AOL

    www.aol.com/ice-heat-back-pain-133000090.html

    Ultrasound therapy, which uses high-pitched sound waves to create heat and vibrations in the body to treat pain, inflammation, and other conditions. When to see a doctor for back pain.

  9. Lumbar puncture - Wikipedia

    en.wikipedia.org/wiki/Lumbar_puncture

    It is regarded as a safe procedure, but post-dural-puncture headache is a common side effect if a small atraumatic needle is not used. [1] The procedure is typically performed under local anesthesia using a sterile technique. A hypodermic needle is used to access the subarachnoid space and collect fluid.