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The brain and the spinal cord make up what?
The central nervous system (CNS)
How many layers protect the structures
3
these structures are protected by 3 layers of connective tissue called the what?
meninges
Dura mater
thick and tough layer
Arachnoid membrane
thin,cobweb-like layer
piamater
thin layer containing lots of blood vessels
between the arachnoid layer and the pia mater is the what?
the cerebrospinal fluid (CSF)
what does the cerebrospinal fluid do to the brain
it protects the brain by preventing to contacting the skull. also maintains the blood brain barriers and prevents infections.
the CFS is produced in spaces within the brain called
ventricles
how many ventricles are there
4
what are the 4 ventricles
2 lateral(left and right) 3rd vent and 4th