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nervous system - Coggle Diagram
nervous system
spinal cord
classified into the
thoracic areas
lumbar areas
cervical areas
spinal nerves originate in an area
called the spinal segment
meninges
3 membranous layers
that protect the brain and spinal cord
include 3 layers
Arachnoid
a web-like layer of connective tissue
Pia mater
the thinnest layer
dura mater
divided into 2 parts
periosteal layer
meningeal layer