CNS Flashcards
what is CNS composed of
brain and spinal cord
what is PNS composed of
peripheral nerves and all cranial nerves except optic
types of glial cells
astrocytes
Schwann cells
oligodendrocytes
ependymal cells
microglia
astrocytes function
important for forming blood brain barrier
ependymal cells function
production and circulation of CSF
microglial cells function
immune protection
cells producing myelination in PNS
Schwann cells
cells producing myelination in CNS
oligodendrocytes
problem of myelination in CNS
multiple sclerosis
problems of myelination in PNS
Guillain barre syndrome
grey matter
more cell bodies, dendrites, axon termini, astrocytes and blood vessels
white matter
more axons, oligodendrocytes and blood vessels
cerebellum function
balance and coordination
brain stem function
heart rate and breathing
what makes up brainstem
midbrain
pons
medulla oblongata
function of temporal lobe
hearing
area of brain involved in speech
Broca’s area
area of brain involved in language and reading
wernicke’s area
prefrontal cortex function
personality and behaviour
primary motor cortex
controls voluntary movement
primary somatosensory cortex
involved in sensation
hypothalamus
maintains homeostasis
thalamus
relay centre between spinal cord and cerebral Cortex
basal ganglia
control of movement
limbic system
composed of amygdala and hippocampus controls emotions and behaviour
what structure splits two hemispheres
corpus callosum
what level of vertebrae does spinal cord end
L1/2
region of motor output
spinal nerve at ventral side
region of sensory input
spinal nerve at dorsal side
cauda equina
anchors spina cord to bottom of vertebral column
spinothalamic tract
ascending, sensory, pain and temp
corticospinal tract
descending, motor, voluntary movement
layers of meninges
dura
arachnoid
pia mater
subarachnoid space
where CSF flows
how is meningitis tested for
lumbar puncture between L4 and L5
ependymocytes
line ventricles and spinal canal
