https://en.wikipedia.org/wiki/Subarachnoid_hemorrhage
https://en.wikipedia.org/wiki/Arachnoid_mater

it is one of the protective membranes around the brain and spinal cord, and it is named after its resemblance to spider webs, so - close enough
https://en.wikipedia.org/wiki/Subarachnoid_hemorrhage
https://en.wikipedia.org/wiki/Arachnoid_mater

it is one of the protective membranes around the brain and spinal cord, and it is named after its resemblance to spider webs, so - close enough