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11 terms

CNS

STUDY
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CNS
brain and spinal cord
Spinal cord
central cavity: surrounded by gray matter (unmyelinated core), external: white matter
Ventricles
spaces of the brain, connected to one another and to central canal of spinal cord, lined with ependymal cells, contain cerebrospinal fluid
2 C-shaped ventricles
2, side ventricles in the cerebral hemispheres
Third ventricle
in the diencephalon
Fourth ventricle
in the hindbrain, dorsal to pons, develops from lumen of the neural tube
Surface markings on cerebral hemispheres
ridges (gyri), shallow grooves (sulci), deep grooves (fissures)
5 lobes
frontal, parietal, occipital, temporal, insula
central sulcus on cerebral hemispheres
separates precentral gyrus of frontal lobe and postcentral gyrus of parietal lobe
longitudinal fissure
separates 2 hemispheres
transverse cerebral fissure
separates cerebrum and cerebellum