Card 4 / 26: How do the meninges cover the spinal cord?
A.)
The pia, arachnoid, and dura cover the spinal cord in tight, closely apposed layers.
B.)
The dura, arachnoid, and pia of the brain and spinal cord are continuous. All three layers loosely cover the spinal cord.
C.)
The dura, arachnoid, and pia all cover the spinal cord; the dura and arachnoid are tightly connected with each other.
D.)
Only the dura mater continues down from the brain to cover the spinal cord, protecting it from the surrounding bone.
Answer:
C.) The dura, arachnoid, and pia all cover the spinal cord; the dura and arachnoid are tightly connected with each other.
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Remember, cranial nerves are similar to spinal nerves. Some cranial nerves, for example, V, VII, VIII, IX, X, have ganglia, comparable to dorsal root ganglia, outside the CNS.
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Ch 04: Spinal Cord General Anatomy & Brain Stem
Author:
M.D.Stephen VoronLecturer
University of Utah
USA
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