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arachnoid |
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arachnoid [ə′rak‚nȯid] (anatomy) A membrane that covers the brain and spinal cord and lies between the pia mater and dura mater. (botany) Of cobweblike appearance, caused by fine white hairs. Also known as araneose. (invertebrate zoology) Any invertebrate related to or resembling the Arachnida. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Occasionally, MRI has difficulty distinguishing an epidermoid from an arachnoid cyst; this problem can be overcome with a fluid-attenuated inversion recovery (FLAIR) MRI when an epidermoid is hyperintense. says Wendy Robbins (pictured, left) of the Tingler, the arachnoid, 10-pronged, copper head massager she created with partner Jorli McLain (right). 15,18,19) They originate in the tissues that surround the brain and spinal cord, specifically in the arachnoid granulations. |
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