Where is limbic system located?
bw diencephalon and telencephalon, mainly rhinencephalon
Function of limbic system
olfactory, emotion, motivation, learning + memory
Function of hypothalamus (main part of limbic system)
emotional behaviour, through vegetative and endocrine reactions
Neocortex has which limbic system structures?
cingular and parahippocampal gyri
Paleocortex has which limbic system structures?
subcaallosal gyrus, area subcallosal, enthorinal area
Archicortex has which limbic system structures?
hippocampal formation, dentate gyrus, subiculum
Nuclei of telencephalon
amygdaloid, septum pellucidum, accumbens septi, basal nucleus
Nuclei of diencephalon
ant thalamic, ld, md, non-specific thalamic, mammilary body, habenula
Nucleus of mesencephalon
interpeduncular
Orbito-frontal association area of limbic system - function
control of emotional response and olfactory discrimination
Cingulum (in relation to limbic system)
association fascicle of limbic system
Fasciculus uncinatus (in relation to limbic system)
association connection bw parahippocampal gyrus and septal area
Striae longitudinalis lat and med Lancisi (in relation to limbic system)
limbic fascicle, association fibers of rhinencephalon
Fornix (in relation to limbic system)
association and projection band bw telencephalon and diencephalon
Where does precommisural tract of fornix end?
septal area and ant nuclei of hypothalamus
Where does postcommisural tract of fornix end?
mammilary body
Mammilothalamic tract Vicq d'Azyr (in relation to limbic system)
jxn bw mammilary body nuclei and ant thalamic nuclei
Median forebrain bundle (in relation to limbic system)
connection bw limbic system, basal prosencephalon and brainstem
Anterior commissural fibers
connect olfactory lobes, amygdaloid complex and parahippocampal gyrus
Parahippocampal commissural fibers
connects 2 hippocampal formations
Habenular commissural fibers
connects habenular nuclei
Perforating association fibers
connects enthorinal cortex and hippocampus
Afferences of limbic system
thalamic peduncle, olfactory lobe, median forebrain bundle
thalamo-cingular fibers
from sensitive and sensorial systems
Median forebrain bundle is from
reticular formation
Efferences of limbic system
hypothalamus, extrapyramidal system, reticular formation and supralimbic neocortex
Extrapyramidal system
thru amygdaloid-hypothalamo-habenular circuit
Supralimbic neocortex
by association efferences of limbic lobe, for conscious perception of emotional behaviour