Limbic System Flashcards
(26 cards)
papez circuit
cingulate-hippocampus-fornix-mammillary bodies-anterior thalamus
McClean expanded components of limbic system to also
hypothalamus, septal area, orbitofrontal cortex, nucleus accumbens of striatum, amygdala
one mechanism forl limbic system’s involvement in memory and pain/pleasure
lots of cholinergic and opiate receptors
common physiologic properties of the limbic system
susceptible to kindling of seizures
lots of cholinergic and opiate receptors
stria terminalis connects what
amygdala with septum and hypothalamus
perforant path connects
entorhinal cortex with dentate of hippocampus
outer core structures of limbic system
entorhinal cortex (anterior temporal lobe)
cingulate gyrus
orbital cortex
cingulate cortex rostral part responsible for
emotions and motor
cingulate cortex caudal part responsible for
visual spatial, memory
orbital frontal lobe responsible for
personality, behavior
temporal lobe (hippocampus, parahippocampus, entorhinal cortex) responsible for
memory
inner core parts of the limbic system
anterior thalamic nucleus
mammillary body
hypothalamic nuclei
septal nuclei
hypothalamus
amygdala
septum
fxn of hypothalamus
pleasure center
autonomics
endocrine
amygdala fxns
emotion social behavior defense sexual behavior affect of faces
septum fxns
sexual behavior, emotions
medial forebrain bundle
connection between hypothalamic nuclei and amygdala and brainstem nuclei
Kluver Bucy syndrome results in what
more oral activity
hypersexuality
hypermetamophosis-attention to every visual stimulus
placidity-flattened affect, no fear
visual agnosia-lack of recognition of objects, people
bulimia
Geschwind syndrome
sensory limbic hyperconnectivity
what do you see in pts with Geschwind syndrome
increased attention to philosophical matters
different sexual behavior (hyposexuality)
hypergraphia-lots of writing
viscosity-interpersonal stickiness
emotionalized idea of the world
most prominent brain pleasure regions
lateral hypothalamus
medial forebrain bundle (hypothala connects to septum)
nucleus accumbens
septal region has what kind of control over sexual behavior
positive
hippocampus, dorsal medial nucleus of thalamus, and mammillary nuclei are involved in what kind of memory
declarative memokry (facts and events)
major efferent for hippocampal formation
fornix
major afferent for hippocampal formation
perforant path
