Meninges and Protective Layers of the Brain and Spinal Cord

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Questions and Answers

How many protective membranes surround the brain in the skull?

Four
Three (correct)
One
Two

What structure is surrounded by three meninges in the vertebral column?

The heart
The brain
The spinal cord (correct)
The lungs

What is the function of the meninges?

To separate the brain and spinal cord from the bones
To provide sensations to the body
To regulate body temperature
To protect the brain and spinal cord (correct)

What are the two layers of the dura mater?

<p>The endosteal layer and meningeal layer (C)</p> Signup and view all the answers

What are the spaces between the meninges called?

<p>Venous sinuses (A)</p> Signup and view all the answers

Study Notes

Protective Membranes of the Brain and Spinal Cord

The brain is surrounded by three protective membranes, or meninges, in the skull:
- Dura mater
- Arachnoid mater
- Pia mater

Protective Membranes of the Spinal Cord

The spinal cord in the vertebral column is also surrounded by three meninges:
- Dura mater
- Arachnoid mater
- Pia mater

Dura Mater Layers

The dura mater has two layers:
- Endosteal layer
- Meningeal layer
These layers are closely united, except where they separate to form venous sinuses.

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Description

This quiz covers the three protective membranes surrounding the brain (dura mater, arachnoid mater, pia mater) and the two layers surrounding the spinal cord (endosteal layer, meningeal layer). It also includes information on how these layers are closely united except in areas where they form venous sinuses.