Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
What are the 3 areas of the limbic system?
|
1. septal area
2. cingulate gyrus 3. parahippocampal gyrus |
|
|
The Function/location/parts of teh hippocampus
|
Function~ memory and learning
Location~ parahippocampal gyrus,posterior Parts~ dentate gyrus, hippocampus proper, subiculum |
|
|
Path of the hippocampus
|
- entorhinal- dentate gyrus- hippocampus proper- subiculum- fornix- mamillary nuclei- mamillothalamic tract- anterior thalamus- cingulate gyrus, cingulum
|
|
|
Clinical aspects of hippocampus (3)
|
1. bilateral lesion~ anterograde amnesia
2. mamillary lesions/ant thalamus lesion~ Korsakoff's 3. Abnormalities of entorhinal~ Alzheimer's and possibly epilepsy |
|
|
Function/location of the amygdala
|
Function~ Fear/emotions
Location~ deep parahippocampal gyrus close to uncus |
|
|
Path of the amygdala
|
Medial~ input from the olfactory tract (lateral stria), goes to hypothalamus for appropriate response to stimulus
Lateral~ input from cortex out via ventral amygdaloid path 1. hypothalamus (express emotions) 2. medial dorsal nucleus to prefrontal cortex (aware of emotional response) |
|
|
Clinical aspects of amygdala
|
1. Bilateral lesions~ Kluver Bucy syndrome (no fear)
2. temporal lobe epilepsy (sudden bad odor/ fear) |
|
|
The function/location of nucleus accumbens
|
Function~ reward center
Location~ ventral striatum (between head of caudate and putanem) |
|
|
Path of the nucleus accumbens
|
Input from prefrontal cortex Sends to ventral pallidum to medial dorsal nucleus to prefrontal cortex
|
|
|
The function/location of the septal nuclei
|
Function- reward center
Location- medial to nucleus accumbens, in septum pellucidum |
|
|
Path of the septal nuclei
|
Input from amygdala sends to hypothalamus to midbrain reticular formation
|
|
|
Clinical aspects of nucleus accumbens/septal nuclei
|
Play a role in the high from stimulatory drugs
|
|
|
Role of the anterior cingulate gyrus
|
inhibitory center
|
|
|
Role of the temporal poles
|
Fear/anxiety
|
|
|
Role of the orbitofrontal cortex
|
social behavior (Phineas Gage)
|
