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21 Cards in this Set
- Front
- Back
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what is the subicular/subiculum?
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transition b/w 6-layered and 3-layered cortex
transition b/w neocortex and cortical portions of HC |
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Subicular transitions to what Horn?
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Cornuu Ammonis
interdigitates with the dentate gyrus |
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Fimbria leaves HC and becomes..
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the fornix
memory/emotions |
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Renders the HF non-functional in Alzheimer's
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amyloid plaques
neurofibrillary tangles |
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Fornix terminates
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in the mammilary bodies
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Mammillothalamic Tract
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MB to ATN
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Cortical Associations of Papez's Circuit
allows for |
frontal, parietal, occipital, temporal
laying down new memories |
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Limbic Lobe is composed of
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amygdala
HC cingulate gyrus olfactory impulses *also called Rhinencephalon |
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Olfactory Nerves synapse
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on Mitral cells
ON are true bipolar sensory neurons |
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Medial Olfactory tract terminates
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terminates in MOArea
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5 Components of MOA
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1. septum pellucidum
2. olfact trigone 3. med portion of ant perforated substance 4. subcallosal gyrus 5. parolfactory area of broca |
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5 Areas of MOA send nuerons to Hypothalmus via
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Medial Forebrain Bundle
MFB terminates on VHN VHN is connected w/ all hypothalamic structures |
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Dorsal longitudinal Fasiculus(DLF) arises from
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hypothalamic interconnections with Ventromedial hypothalamic nucleus (VHN)
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DLF teminates on CN assoc w/feeding
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CN V, VII, NA, XII, IX
SSN ISN smell something good-->salivate |
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Lateral Olfactory Tract (LOT)
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Prepiriform cortex
olfactory impulses can stimulate Papez's circuit |
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Amygdalohypothalamic pathway
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direct connections from amygdala to hypothalmus
allow for our unique emotional responses to dfft things -preferences *Vitally important for emotional development |
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Prefrontal cortex fully myelinated in man at what age?
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23/24
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Lesions of Amygdala syptoms
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1. sham rage
2. placidity |
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Herpes Simplex can cause
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bilateral lesions of medial temporal lobes
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squamous cell carcinoma metstisize to medial temporal lobes
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Paraneoplastic limbic encephalitis
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akinetic mutism
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loathness to move, depressed, dec memory, bored
from cingulate gyrus damaged anteriorly |
