What are the layers of the meninges and their functions?
Understand the Problem
The question pertains to the structure and functions of the meninges that surround the brain and spinal cord, including the different layers and their characteristics.
Answer
Dura mater, arachnoid mater, pia mater: outer, middle, inner layers.
The layers of the meninges are the dura mater, arachnoid mater, and pia mater. The dura mater is the tough outer layer, the arachnoid mater is the middle web-like layer with cerebrospinal fluid (CSF), and the pia mater is the delicate inner layer closely attached to the brain and spinal cord.
Answer for screen readers
The layers of the meninges are the dura mater, arachnoid mater, and pia mater. The dura mater is the tough outer layer, the arachnoid mater is the middle web-like layer with cerebrospinal fluid (CSF), and the pia mater is the delicate inner layer closely attached to the brain and spinal cord.
More Information
The meninges play a critical role in protecting the brain and spinal cord by providing a physical barrier against injury and infection. The pia mater is rich in blood vessels, which helps nourish the brain.
Tips
Common mistakes include confusing the order of the layers or misidentifying their specific functions.
Sources
- Meninges: What They Are & Function - Cleveland Clinic - my.clevelandclinic.org
- Meninges: Function, Location, Health Problems, and More - WebMD - webmd.com
- The Meninges - Dura - Arachnoid - Pia - TeachMeAnatomy - teachmeanatomy.info
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