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Questions and Answers
How many protective membranes surround the brain in the skull?
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?
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?
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?
What are the two layers of the dura mater?
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What are the spaces between the meninges called?
What are the spaces between the meninges called?
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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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