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Pia mater



 
 
The pia mater (Latin: "tender mother") is the delicate innermost layer of the meninges
Meninges

The meninges is the system of Mesotheliums which envelops the c






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The pia mater (Latin: "tender mother") is the delicate innermost layer of the meninges
Meninges

The meninges is the system of Mesotheliums which envelops the central nervous system. The meninges consist of three layers: the dura mater, the arachnoid mater, and the pia mater....
—the membranes surrounding the brain and spinal cord.

The thin, mesh-like pia mater closely envelops the entire surface of the brain, running down into the fissures of the cortex
Cortex

Cortex may mean any of the following:In anatomy:* Cortex , the outermost or superficial layer of an organ, and especially in the brain:...
. It joins with the ependyma
Ependyma

Ependyma is the thin Epithelium lining the ventricular system of the brain and the spinal cord. Ependyma is one of the four types of neuroglia in the central nervous system....
 which lines the ventricles to form choroid plexus
Choroid plexus

The choroid plexus is the area on the ventricle s of the brain where cerebrospinal fluid is produced by modified ependymal cells....
es that produce cerebrospinal fluid
Cerebrospinal fluid

Cerebrospinal fluid , Liquor cerebrospinalis, is a clear bodily fluid that occupies the subarachnoid space and the ventricular system around and inside the brain....
.

In the spinal cord, the Pia mater attaches to the Dura mater
Dura mater

The dura mater , or pachymeninx, is the tough and inflexible outermost of the three layers of the meninges surrounding the brain and spinal cord....
 by the denticular ligaments through the arachnoid membrane.

The pia mater is a neural crest derivative.