Multiple Choice
Which structure is responsible for transmitting sensory and motor information between the spinal cord and the rest of the body?
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12. The Central Nervous System
Introduction to the Central Nervous System
Multiple Choice
Which of the following correctly arranges the spinal meninges from innermost layer to outermost layer?
A
Pia mater, dura mater, arachnoid mater
B
Dura mater, arachnoid mater, pia mater
C
Arachnoid mater, pia mater, dura mater
D
Pia mater, arachnoid mater, dura mater
Verified step by step guidance1
Understand that the spinal meninges are protective layers surrounding the spinal cord, and they consist of three layers: pia mater, arachnoid mater, and dura mater.
Recall the anatomical arrangement of the meninges. The pia mater is the innermost layer, directly adhering to the spinal cord and brain, providing protection and nourishment.
The arachnoid mater is the middle layer, located between the pia mater and dura mater. It is a web-like structure that helps cushion the spinal cord and brain.
The dura mater is the outermost layer, a tough and durable membrane that provides the most external protection for the spinal cord and brain.
Arrange the layers from innermost to outermost: Pia mater (innermost), arachnoid mater (middle), and dura mater (outermost). This sequence matches the correct answer provided in the problem.
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