Regional CNS Flashcards
CNS cortex includes
• Cerebral Hemispheres • Diencephalon • Cerebellum • Brainstem Midbrain Pons Medulla
brain directions equivalent to superior inferior anterior posterior
sup = dorsal inf = ventral ant = rostral post = caudal only pertains to brain not stem or cerebellum
forebrain
prosencephalon
- telencephalon (brian hemi)
- diencephalon (thalamus, ect_
midbrain
mesencephalon
top of brainstem
hindbrain
rhombencephalon
- metencephalon (pons)
- myelencephalon (medulla)
Gray matter
cell bodies
nuclei - local accumulation of neurons
cortices - sheet like array of nerve cells
ganglia - number of neurons linked together
white matter
neuron axons
bundles of axons (majority of signal transmission)
myelin of gives it white appearance
arachnoid mater protects
shear force
aids in CNS circulaiton
dura mater protects
blunt force
limits rotational displacement
anterior fossa contains
frontal lobe
middle fossa contains
temporal
posterior fossa contains
cerebellum brainstem
meningeal dura mater
falx cerebri does what
separate left from right
meningeal dura mater
tentorium
sperats occipital lobe in the back from cerebellum
arachnoid villi
projections of arachnoid mater into dura for CSF transport
pia mater
- aids in CSF production
- highly vascular
- increases efficiency of BBB
- contributes to degradation of neurotransmitter