intro to cns terms Flashcards
soma
cell body of a neuron
synapse
gap between neurones where neurones communicate with one another
tracts of white matter
location of the pathway
commissure of white matter
tract connects hemispheres
lemniscus
narrow strip of fibres
capsule
sheet of white matter fibres which borders a nucleus (grey matter)
column
longitudinally running fibres
how much of the visible surface does the cortex make up
90&
thickness of cortex
10mm
why are there folds and grooves in the cortex of the brain
increase surface area
functions of frontal lobe
- decision making
- skilled voluntary movements
functions of parietal lobe
- perception of body
- visuospatial localisation
functions of temporal lobe
- auditory perception
- cognition
- memory
functions of occipital lobe
- visual perception
lobes of the forebrain
frontal
parietal
temporal
occipital
structures of the grey matter
thalamus
hypothalamus
basal ganglia
limbic structures
thalamus
- relay centre
- directs impulses to cortical areas
hypothalamus
- ANS
- links endocrine system to cerebrum
limbic structures
- centres for memory and emotion
pons
bridge to cerebellum
cerebellum function
coordinates movements and balance
how is the cerebellum separated from the dorsal brain
4th ventricle