4-Limbic System Flashcards
1
Q
limbic structures function
A
memory, defense, reproductin
-survival
2
Q
structures
A
- cingulate gyrus
- parahippocampal gyrus
- subcallosal gyrus
- hippocampus
- amygdala
- septal area
- hypothalamus
- uncus olfactory cortex
7 and 8
3
Q
olfactory pathway
A
- bulb
- tract
- medial and lateral stria
- medial > anterior commissure to share info with other hemisphere + septal area
- lateral > amygdala, piriform lobe, uncus @ temporal lobe
4
Q
pathways into hippocampus
A
- alvear path
- perforant path
then thru dentate gyrus before hippocampus proper
receive input from entorhinal cortex
5
Q
CA1 region
A
of hippocampus
highly susceptible to hypoxia
6
Q
types of memory
A
- working- cerebral cortex
- short term- hippocampus
- long term- cerebral association areas
- semantic- words, geography, history, multiplication tables
- episodic- personal unique events
7
Q
major input to amygdala
A
- olfactory- emo signif to odors
- sensory- 5 senses, monitor for threats
- viscereal sensory- from hypothalamus
- cingulate cortex- physical and emo comfort level
8
Q
major output amygdala
A
- reciprocol connections with inputs
- cingulate cortex connects to all cerebral lobes
- ventral amygdalofugal pathway to basal ganglia/nucleus accumbens/ventral striatum
9
Q
septal area
A
perceptions of pleasure and well being
-inputs from hippocamp and amy complex via stria terminalis
-outputs back to hippo + hypothalamus via medial forebrain bundle + brainstem via medial forebrain
addiction pathway?