The arachnoid membrane.

the middle of the three coverings (meninges) of the brain or spinal cord

Spider or cobweblike feature on the surface of Venus, typically having a diameter of about 100-km and a central volcanic structure surrounded by a complex network of lineaments.

The middle of the three membranes covering the brain and spinal cord.

(Greek, arachne = spider + -oeides = form) spider web-like meningial layer covering central nervous system. Lies between tough outer duramater and fine piamater.

a. (Gr. arachme, spider, cobweb; eidos) like a cobweb; covered with or consisting of soft fibers or hairs so entangled as to give a cobwebby appearance.

Delicate, web-like middle layer of the three membrane layers that covers the brain and spinal cord; arachnoid mater.

the middle of the 3 meninges

relating to or resembling a member of the class Arachnida

(ah-RAHK-noyd) The middle of three connective tissue coverings (meninges) of the brain and spinal cord.

A membrane of the brain. When abnormally thickened, it is a potential cause of compression on the trigeminal nerve. Arteriov enous malformation (AVM). An abnormal growth of blood vessels that sometimes rupture without warning. These vessels can cause TN if they grow near and compress the trigeminal nerve.

arachne (spider), eidos (resemblance).

(Gr. spider-like) Mater: The middle of the three meninges enclosing the brain and spinal cord. It is a thin, translucent membrane closely adherent to the dura mater. Trabeculae extend from its inner surface across the subarachnoid spa ce to the pia. Also forms the outer membrane of the leptomeninges.

Middle layer of membranes covering the brain and spinal cord.

adjective, Greek arachne = spider, and eidos = shape or form, hence like a spiders web. This middle layer of the three meninges is spread web-like over the brain when the dura has been removed.

composed of fine tangled hairs like a cobweb.

The middle layer of the meninges of the brain; so-named ("like a cobweb") because of its delicate network of tissue.

One of the three protective membranes surrounding the brain that collectively are called the meninges.

a scientific term for something shaped like a spider.

Cobwebby. Parent Term: Hairs Difficulty Level

The middle membrane layer of the three which cover the brain and spinal cord.

appearing as if covered in cobwebs.

middle-layer of the the membranes which cover the brain and spinal cord

The middle meninx that encloses cerebrospinal fluid and protects the central nervous system.

Gr. 'spider like'. Refers to the web-like delicacy of the arachnoid mater ( Ch. 4).

In astrogeology, an arachnoid is a large structure of unknown origin, and they have been found only on the surface of the planet Venus. Arachnoids get their name from their resemblance to spider webs. They appear as ovals surrounded by a complex network of fractures, and can span 200 kilometers.