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Flashcards in Diencephalon Deck (36)
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1

parts of diencephalon

thalamus
hypothalamus
epithalamus
subthalamus

2

epithalamus

pineal gland

3

subthalamus fxn

play a role in indirect basal gang path

4

parts of thalamus (to know)

VA
VL
VPL
VPM
ant nuc
mediodorsal nuc
lat geniculate body
med geniculate body

5

hypothalamus fxns

homeostasis
endocrine
autonomic
limbic

6

hypothalamus regulates

temp control
sleep
H2O balance
hormone secretion
BP
feeding
ANS
emotional processes (in memory)

7

hypo nuclei --> PP

paraventricular nuc
supraoptic nuc

8

nuclei of hypo affecting AP

arcuate nucleus

9

anterior hypo parts

paraventricular
ant and preoptic areas
supraoptic nucleus
suprachiasmatic nuc

10

paraventricular nuc fxn

secrete oxytocin, ADH

11

ant and preoptic area fxn

heat/cold response

12

supraoptic nuc fxn

secrete oxytocin, ADH

13

suprachiasmatic nuc

circadian rhythms

14

preoptic nuc fxn

regulate release of GnHs
induce non REM sleep

15

preoptic nuc male vs female

big in males (make gametes constantly)
vary in size during female cycle

16

preoptic nuc lesion

after pubery - amenorrhea or impotence

17

suprachiasmatic nuc to and from

input from optic tract
go to LGB and pretectal nuc
regulate pineal gland

18

paraventricular/supraoptic nuc neuron type

magnocellular

19

periventricular/arcuate nuc neuron types

parvocellular

20

hypophyseal veins drain to...

cavernous sinus

21

tuberal region parts

lateral hypothalamic zone
ventromedial nuc
arcuate nuc

22

lat hypothalamic zone fxn

feeding center

23

lat hypothalamic zonr lesion

aphagia

24

ventromedial nuc fxn

satiety nuc
regulate food intake

25

ventromedial nuc lesion

obesity

26

arcuate nuc fxn

make releasing hormones and inhibitory factors
most releasing
dopamine is inhibitor

27

suproptic nuc lesion

diabetes insipidus
polydipsia, polyuria

28

mammillary body fxns

part of memory/limbic

29

causes of mamm body damage

thiamine deficiency (alcoholics)

30

thiamine def -->

degeneration of dorsomedial nuc of thalamus and mamm bodies, hippocampus and vermis (Cb)