ARAS - Ascending Reticular Activation System Flashcards
1
Q
ARAS - route
-> subcortical -> cortical
A
Thalamus - subcortical
Basal forebrain - subcortical
Acetylcholine - 2nd source
Cortex
-> grey + white matter
2
Q
Arousal
A
right hemisphere
3
Q
No arousal
A
= coma
4
Q
Locus Coeruleus
A
= noradrenaline
5
Q
Dorsal Raphe Nucleus
A
= serotonin
6
Q
Pedoncalo Pontine Tegmental Nucleus
A
= acetylcholine
7
Q
Substantia Nigra
A
= dopamine
8
Q
Septum
A
basal forebrain nuclei
-> acetylcholine to cortext + medial
connected to hippocampus
-> medial temporal lobe
-> cortical
more arousal = more learning
9
Q
Cortical
A
emotional
-> higher order behavioral
functions
spatial processing
arcuate fibres - white matter tracts
-> connect cortical regions
10
Q
Subcortical
A
contribute
->basic function related to
higher order
motor
