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24 Cards in this Set
- Front
- Back
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What stabilize the shape and position of the CNS?
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Meninges
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The Meninges are anchored in the?
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Skull
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What provides a buoyant fluid environment so the brain can stay undistorted and maintain its shape?
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Cerebrospinal fluid
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The brain is how many pounds?
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Three
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Meninges means what?
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Meninx-Membrane
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What structure mechanically suspends the brain from the skull?
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Meninges
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What structure contains a layer of CSF that allows brain to float?
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Meninges
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CSF prevents ________ of brain
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Deformation
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The CSF reduces the effective weight of the brain from ___g to ____g
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1500g to 50g
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List the three meningeal layers
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Dura Mater
Arachnoid Pia Mater |
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The three meningeal layers are coverings that enclose the brain and spinal cord. What kind of tissue are they?
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Connective
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The outer layer of the meninges is the _____
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Dura Mater
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Dura Mater means
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Tough Mother
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What is the 'saran wrap layer' Second layer
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Arachnoid
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The third and closest layer to the brain is the ______
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Pia Mater
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The _________ contains the venous sinuses that drain blood from the brain
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Dura Mater
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The dura mater provides _______ support
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Mechanical
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What are the two fused layers of the dura mater?
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Periosteal layer (against bone of skull)
Meningeal layer |
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The dura is supplied by what? 2
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Blood vessels
Nerves (especially pain significance) |
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Dura Mater:
Divides the ________ |
Cranium
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Dura Mater:
Inner (meningeal) layer ________ |
invaginates
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Dura Mater:
Invaginations provide two things |
Divide intracranial space and support the brain
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Invaginations are also called what?
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Septa
(Singular:Septum) |
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What are the four parts of the Dura Mater?
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Falx Cerebri
Tentorium Cerebelli Falx Cerebelli Diaphragma sellae |
