Question

multiple choice 2 points
the middle layer of the meninges is called the
arachnoid mater
pia mater
white matter
dura mater
gray matter

Explanation:

Identify the layers of the meninges

The meninges consist of three protective membranes surrounding the brain and spinal cord:

1. Dura mater (outermost layer)
2. Arachnoid mater (middle layer)
3. Pia mater (innermost layer)

Determine the middle layer

The question asks for the middle layer of the meninges, which is the arachnoid mater.

Match with the given options

• arachnoid mater: Correct
• pia mater: Incorrect (innermost layer)
• white matter: Incorrect (nervous tissue, not a meningeal layer)
• dura mater: Incorrect (outermost layer)
• gray matter: Incorrect (nervous tissue, not a meningeal layer)

Answer:

• arachnoid mater (Correct answer)
• pia mater
• white matter
• dura mater
• gray matter