Meninges

subarachnoid spacemeningealleptomeningessubarachnoidleptomeningealmeninxsubarachnoid cavitymeningeSpinal meningessubpial space
The meninges (, singular: meninx ( or ), from, adjectival: meningeal ) are the three membranes that envelop the brain and spinal cord.wikipedia
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Pia mater

piapialsubpial
In mammals, the meninges are the dura mater, the arachnoid mater, and the pia mater.
Pia mater ( or ), often referred to as simply the pia, is the delicate innermost layer of the meninges, the membranes surrounding the brain and spinal cord.

Dura mater

duraduralcovering of the spinal cord
In mammals, the meninges are the dura mater, the arachnoid mater, and the pia mater. The dura mater is attached to the skull, whereas in the spinal cord, the dura mater is separated from the vertebrae by a space called the epidural space, which contains fat and blood vessels.
It is the outermost of the three layers of membrane called the meninges that protect the central nervous system.

Cerebrospinal fluid

cerebral spinal fluidCSFspinal fluid
Cerebrospinal fluid is located in the subarachnoid space between the arachnoid mater and the pia mater.
CSF occupies the subarachnoid space (between the arachnoid mater and the pia mater) and the ventricular system around and inside the brain and spinal cord.

Spinal cord

medulla spinalisspinethoracic segment
The meninges (, singular: meninx ( or ), from, adjectival: meningeal ) are the three membranes that envelop the brain and spinal cord. The dura mater is attached to the skull, whereas in the spinal cord, the dura mater is separated from the vertebrae by a space called the epidural space, which contains fat and blood vessels.
The spinal cord (and brain) are protected by three layers of tissue or membranes called meninges, that surround the canal.

Dural venous sinuses

dural venous sinusvenous sinusesdural sinuses
The dura mater is a sac that envelops the arachnoid mater and surrounds and supports the large dural sinuses carrying blood from the brain toward the heart.
The dural venous sinuses (also called dural sinuses, cerebral sinuses, or cranial sinuses) are venous channels found between the endosteal and meningeal layers of dura mater in the brain.

Brain

brain functionmammalian braincerebral
The meninges (, singular: meninx ( or ), from, adjectival: meningeal ) are the three membranes that envelop the brain and spinal cord.
Vertebrate brains are surrounded by a system of connective tissue membranes called meninges that separate the skull from the brain.

Falx cerebri

It is a large, crescent-shaped fold of meningeal layer of dura mater that descends vertically in the longitudinal fissure between the cerebral hemispheres of the human brain.

Central nervous system

CNScentralcentral nervous system (CNS)
It cushions the central nervous system.
The brain and spinal cord are both enclosed in the meninges.

Arachnoid mater

arachnoidarachnoid membranearachnoidal
In mammals, the meninges are the dura mater, the arachnoid mater, and the pia mater.
The arachnoid mater is one of the three meninges, the protective membranes that cover the brain and spinal cord.

Subarachnoid cisterns

lumbar cisterncisternsubarachnoid cistern
are the subarachnoid cisterns, which are filled with cerebrospinal fluid.
The subarachnoid cisterns are spaces formed by openings in the subarachnoid space, an anatomic space in the meninges of the brain.

Epidural space

epiduralepidural regions
The dura mater is attached to the skull, whereas in the spinal cord, the dura mater is separated from the vertebrae by a space called the epidural space, which contains fat and blood vessels.
Dura mater is the outermost meningeal layer that covers the brain and spinal cord.

Meningococcal disease

meningococcal meningitismeningococcemiameningococcal septicaemia
Acute meningococcal meningitis can lead to an exudate within the leptomeninges along the surface of the brain.
Meningitis is a disease caused by inflammation and irritation of the meninges, the membranes surrounding the brain and spinal cord.

Meningitis

spinal meningitisbacterial meningitiscerebral meningitis
Other medical conditions that affect the meninges include meningitis (usually from a fungal, bacterial, or viral infection) and meningiomas that arise from the meninges, or from meningeal carcinomatoses (tumors) that form elsewhere in the body and metastasize to the meninges.
Meningitis is an acute inflammation of the protective membranes covering the brain and spinal cord, known collectively as the meninges.

Glia limitans

glial limiting membraneouter limiting membrane
There is a subpial space underneath the pia mater that separates it from the glia limitans.
It is the outermost layer of neural tissue, and among its responsibilities is the prevention of the over migration of neurons and neuroglia, the supporting cells of the nervous system, into the meninges.

Meningioma

meningiomasAnaplastic meningiomabenign brain tumor
Other medical conditions that affect the meninges include meningitis (usually from a fungal, bacterial, or viral infection) and meningiomas that arise from the meninges, or from meningeal carcinomatoses (tumors) that form elsewhere in the body and metastasize to the meninges.
Meningioma, also known as meningeal tumor, is typically a slow-growing tumor that forms from the meninges, the membranous layers surrounding the brain and spinal cord.

Leptomeningeal cancer

leptomeningeal carcinomatosisMeningeal carcinomatosiscarcinomatous meningitis
Other medical conditions that affect the meninges include meningitis (usually from a fungal, bacterial, or viral infection) and meningiomas that arise from the meninges, or from meningeal carcinomatoses (tumors) that form elsewhere in the body and metastasize to the meninges.
Leptomeningeal cancer (also called leptomeningeal carcinomatosis, leptomeningeal disease (LMD), leptomeningeal metastasis, neoplastic meningitis, meningeal metastasis and meningeal carcinomatosis) is a rare complication of cancer in which the disease spreads from the original tumor site to the meninges surrounding the brain and spinal cord, This leads to an inflammatory response, hence the alternative names neoplastic or malignant meningitis, or carcinomatous meningitis.

Subarachnoid hemorrhage

subarachnoid haemorrhagesubarachnoidsubarachnoid hemorrhage, traumatic
Subarachnoid hemorrhage (SAH) is bleeding into the subarachnoid space—the area between the arachnoid membrane and the pia mater surrounding the brain.

Subdural hematoma

subdural haematomasubdural hemorrhageacute subdural hematoma
A subdural hematoma (SDH) is a type of bleeding in which a collection of blood—usually associated with a traumatic brain injury—gathers between the inner layer of the dura mater and the arachnoid mater of the meninges surrounding the brain.

Vertebra

vertebraeneural spineneural arch
The dura mater is attached to the skull, whereas in the spinal cord, the dura mater is separated from the vertebrae by a space called the epidural space, which contains fat and blood vessels.

Cerebellar tentorium

tentorium cerebellitentoriuminfratentorial neoplasms

Pituitary gland

pituitaryhypophysishypophysis cerebri
These various parts are separated by meningial membranes, suggesting that the pituitary of other vertebrates may have formed from the fusion of a pair of separate, but associated, glands.

Subdural space

subduralcavum subdurale
When the dura mater and the arachnoid separate through injury or illness, the space between them is the subdural space.
In the cadaver, due to the absence of cerebrospinal fluid in the subarachnoid space, the arachnoid mater falls away from the dura mater.