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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?
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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