Diencephalon Barr Flashcards
lesion of sub thalamic nuclei
contralateral hemiballismus
epithalamus
striae medullaris thalami
habenular nuclei
posterior commisure
pineal gland
what is the internal capsule
thick band of fibres connecting cerebral cortex with thalamus and other pros of central nervous system
subthalamus
ventral to thalamus
nucleus with motor function (sub thalamic nucleus)
tracts from the brain stem, cerebellum, corpus striatum which terminate in thalamus
epithalamus
dorsomedially to thalamus and adjacent to the roof of the 3rd
includes pineal gland and nuclei concerned with autonomic and behavioural responses to emotional changes
includes habenular nuclei
hypothalamus
between 3rd ventricle and sub thalamus - controls autonomic function
neurohypophysis
includes posterior lobe of pituitary gland - outgrowth of hypothalamus
anterior lobe of pituitary arise from
rathkes pouch
habenular nuclei
afferent fibres received form stria medullaris thalami
gives rise to habenulointerpeduncular tract (fasiculus retroflexus of Meynert)
pineal gland aka epiphysis
outgrowth from epyndymal roof of the third ventricle
stalk that connects to posterior commisure carries axons involved with pupillary reflexes and eye movements
- receives afferent nerve supply from sympathetic trunk through nervus conarii
function: make melatonin
pineal gland tumour
parinauds
- impaired vertical eye movements by pressing on tectum
suprachiasmatic nucleus funtion
clock that regulates rhythmic activity of brain and endocrine system, melatonin can change the speed of clock
prion disease- fatal familial insomnia
mediodorsal and anterior ventral nuclei of thalamus
- dementia
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