PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ventricles
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arachnoid villi
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meninges
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sinuses
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Detailed explanation-1: -Your brain and spinal cord are protected and supported by three meningeal layers. These membrane layers are the dura mater, arachnoid mater and pia mater. The layers plus cerebrospinal fluid keep your brain tissue from jostling against your skull, as well as other functions.
Detailed explanation-2: -The brain and spinal cord are covered and protected by 3 layers of tissue (membranes) called the meninges: dura mater – thickest outer membrane. arachnoid layer – middle, thin membrane. pia mater – inner, thin membrane.
Detailed explanation-3: -Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by vertebrae, a set of ring-shaped bones. They’re both cushioned by layers of membranes (called meninges) and cerebrospinal fluid.