Central Nervous System

ventricles and canals

continuous, fluid filled space within CNS, transports nutrients

cerebrospinal fluid

floats and cushions CNS, provides nutrients, removes wastes, and made by choroid plexuses

what separates tissue?

the blood brain barrier

meninges

connective tissue membranes surrounding CNS, protects CNS, contains CSF, and protects blood vessels

meningitis

inflammation of meninges

pia matter

tightly clings to the brain

spinal cord cross section

layers are continuous with brain, white matter surrounds grey matter, central canal, partially divided in half

spinal cord and nerve structure

layers are continuous with brain, base of brain to conus medullaris, cervical and lumbar enlargements for limbs

cauda equina

horses tail

doral grey matter (& root)

sensory

ventral grey matter (& root)

motor

what nervous system are spinal nerves associated with?

PNS