** neuro- limbic system Flashcards

1
Q

critical in autonomic, endocrine, emotional, somatic functions; maintains homeostasis

A

hypothalamus

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2
Q

3 types of hypothalamic connections

A

limbic system
output to pituitary
interconnects visceral/somatic nuclei

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3
Q

damage to limbic system would lead to

A

loss of higher level thinking, primitive functions, feelings and emotions

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4
Q

how does hypothalamus comm with pituitary?

A

infundibular stalk

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5
Q

hypothalamus organizations

A

perivent
medial
lateral

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6
Q

rostral continuation of PAG

A

perivent

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7
Q

rostral continuation of reticular formation (RF)

A

lateral

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8
Q

location of thalamic nuclei, geniculates

A

medial

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9
Q

3 regions of hypothalamus

A

anterior
tubercle
posterior

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10
Q

nuclei for periventricular zone of anterior hypothalamus

A

suprachiasmatic

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11
Q

nuclei for periventricular zone of tuberal hypothalamus

A

arcuate

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12
Q

nuclei for medial zone of anterior hypothalamus

A

paraventricular

supraoptic

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13
Q

nuclei for lateral zone of tuberal hypothalamus

A

tuberomammilary

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14
Q

suprachiasmatic nuclei

A

direct retinal input - circadian rhythm
melatonin receptors
sensitive to pineal gland activity

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15
Q

involved in feeding behaviors

A

arcuate nucleus

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16
Q

lateral preoptic

A

promotes sleep

17
Q

tuberomammillary

A

histaminergic projections to cortex and thalamus

18
Q

nuclei for lateral zone of anterior hypothalamus

A

lateral preoptic

19
Q

utilized by posterior pituitary ; hormones travel down axons and are released in neurohypophysis

A

supraoptic and paraventricular nuclei

medial zone of ant. hypothalamus

20
Q

hypothalamus inputs

A

areas of forebrain- limbic system

brain and spinal cord

21
Q

visceral and somatosensory inputs to hypothalamus

A

brainstem & spinal cord via MFB and DLF

heart rate, O2, pain, outside stimuli

22
Q

T/F? Hypothalamus only controls adenohypophysis

A

false; controls both neurohypophysis and adenohypophysis

23
Q

cingulate gyrus location

A

deep to temporal

insular lobe

24
Q

3 nuclei groups of amygdala

A

medial
central
basolateral

25
medial amygdala nuclei
olfaction
26
central amygdala nuclei
hypothalamus, PAG,
27
basolateral amygdala nuclei
cortex, emotional responses
28
amygdala location
anterior, medial temporal lobe | collection of nuclei
29
third ventricle opens
posteriorly into cerebral aqueduct
30
amygdala input routes (4)
stria terminalis direct from temporal lobe cortex amydalofugal tract lateral olfactory tract
31
means for drive related information to influence movement decisions
amygdala output to ventral striatum
32
how do fibers leave amygdala?
VAG and stria terminalis
33
patient is hypersexual, sniffs everything, fearless, shows no emotion or regard for authority, keeps picking up his wallet. What do you think is wrong?
Kluver-Bucy Syndrome | bilateral temporal lobe damage - damage to amygdala, visual association cortex, parahippocampal gyrus
34
role of fornix
important hippocampal output
35
transition between hippocampus proper and parahippocampal cortex
subiculum
36
3 distinct zones of hippocampus
dentate subiculum hippocampus proper
37
Papez circuit
interactions among limbic structures, cortex, hypothalamus | emotional experiences processed here