Limbic Lobe Flashcards
The six components of the limbic lobe are
cingulate cortex parahippocampal cortex olfactory cortex insula orbitofrontal cortex medial prefrontal cortex
The fringe of the cortex is agranular. This means that it lacks a prominent layer _ and _
2 and 5
The fringe of the cortex receive multimodal sensory inputs from _ and _ cortices
Primary
Association
Unlike most primary and association cortices, the cortex fringe is reciprocally connected with the _
Amygdala
The cortex fringe targets an area of the ventral striatum, which consists of _ and _
nucleus accumbens
ventral caudate
The parahippocampal gyrus consists of the _ and _ cortices
entorhinal cortex
perirhinal cortex
The main cortical inputs to the hippocampus are the _ and _
entorhinal cortex
perirhinal cortex
The entorhinal cortex is involved with _. Lesions result in patients who cannot recognize _
Organization of spatial information.
Scenes / Landmarks
The perirhinal cortex is considered a _
Multimodal memory storage area
Alzheimer’s Disease affects the _ and _ very early during its progression
entorhinal cortex
perirhinal cortex
The insula is covered by the _. It has granular, dysgranular and agranular zones. It is considered the _ of the limbic system
Opercula
Sensory Cortex
The granular and dysgranular insula receive taste inputs from _, visceral inputs from _ and pain inputs from _
VPMpc
VPLpc/VPI
Posterior Thalamus
The Infralimbic cortex projects prominently to _ (3). Involved in sadness and effect of antidepressants
nucleus accumbens
hypothalamus
midbrain
The Anterior Cingulate cortex is a major target of the _. It has a major role in _ behaviors. Lesion leads to _
Anterior thalamic nuclei
Social
loss of social embarrasment
The psoterior cingulate is involved in _ . Patients with damage to the retrosplenial area have difficulty with _
Self reference
Putting selves in social context
The amygdala in a bilateral mass in the _ lobe, lying deep to the _
Temporal lobe
Uncus
The basal and central components of the amygdala are associated with _ and _
learning
expression of emotional behaviors
The central amygdala projects to the _ (3) and is involved with _
Midbrain, pons, medulla
Stereotypic responses to unpleasant stimuli
The corticomedial amygdala resembles the _ layered entorhinal complex. It is associated with _ and _, is sexually dimorphic
5
olfactory system
medial hypothalamus
The corticomedial amygdala has a prominent role in _ in animals
sexual behaviors
The basal group received the majority of _ inputs to the amygdala It is also the only component that _
Cortical imputs.
Sends inputs to the cortex
In addition to the cortex, the basal inputs sends axons to the _ and the _
striatum (caudate, putamen, NA, central amygdala)
basal forebrain cholinergic neurons
Connections between emotive stimuli and neutral stimuli occur in the _
Basal amygdala
Amygdala projections to the cortex are needed for _, while connections to the striatum are for _
recognition (of fear?)
execution of emotive responses
The amgydala is resistant to stroke. True or false
True
Kluver-Bucy Syndrome has 5 major components. They are
Psychic blindness (to emotional cues) Hypersexuality Lack of fear Hyperorality Memory and Learning deficits
The hippocampus can _ layers. Its outer surface lines which structure?
Three
Lateral ventricles
The layers of the hipocamus are continuous with _, which is continuous with the entorhinal complex. At the other end, the layers are capped by the _
subiculum
dentate gyrus
The _ and _ form 2 interlocking C
Hippocampus
Dentate gyrus
The major inputs to the hippocampus and dentate gyrus are from the _ and _
entorhinal cortex
perirhinal cortex
The dentate gyrus and hippocampus sent projections to the _ and _
subiculum
entorhinal complex
The hippocampus has reciprocal connections with the _, whose neurons serve as a pacemaker
The septal complex (septum)
The main fibers in the fornix are from the
subiculum
A major function of the hippocamus is in _.
memory
Although the Hippocampus is highly involved in episodic memory, it has a role in _ type of memory as well
Spatial / contextual memory (navigation)
Trauma to the anterior temporal lobe lead to hallucinations affecting _ (3)
Smell
taste
sexual sensation
Temporal lobe / psychomotor epilepsy involve which 4 structures?
amygdala
hippocampus
medial temporal lobe
insula
HSV is most likely to infect _ . This results In limbic signs, of which _ is most sever
Limbic system
Loss of conciousness
neurofibrilary tangles in AD begin in the _ before progressing to the _, _ and other limbic cortices.
parahippocampal gyrus
hippocampus
Amygdala
5 symptoms seen early in AD are
memory loss depression agitation aggressiveness disorientation
