Thalamus Flashcards
Thalamus function
Integration of sensory information in brain
Regulation of motor activity and consciousness
Division of gray matter nuclei in thalamus
Anterior group
Medial group
Lateral group
What is the name of Y shaped white matter that divides the gray matter nuclei
Medial medullary lamina
Or internal medullary lamina
Pulvinar of thalamus functions
Vision
Language
Sensation
Pain
Medial geniculate nucleus functions
Relay station from auditory pathways which receives information from inferior colliculi
Lateral geniculate nucleus function
Primary visual relay center which receives axons from retina through optic nerves and tracts and from superior colliculi
What constitutes the metathalamus
Both Geniculate nuclei
What is Stria medullaris
Thin tract of white matter that extends from septal nuclei, hypothalamus and anterior nucli of thalamus
Epithalamus conpoisiton
Habenular trigone
Habenular commissure
Pineal gland
Pineal gland function
Release various hormones like melatonine
Branches of which artery supply thalamus
Posterior cerebral artery
3 types of nuclei
Relay
Association
Non specific
Relay nuclei function
Modulate and relay sensory inputs
Association nuclei function
Receive input form cerebral cortex, limbic sustem , basal ganglia , non specific thalamic nuclei
And send signal back to cortex
Non specific nuclei
Receive input from reticular formation, cortex and other nuclei in thalamus
Inhibit specific pathways to allow attention and arousal
Thalamic nuclei
Anterior nuclei Medial nuclei Lateral nuclei Medial medullary lamina Intralaminar nuclei Thalamic reticular nucleus
Anterior nuclei of thalamus composition
Antero ventral
Anteromedial
Anterodorsal
Anterior nuclei function
Emotional states
Attention
Alterness
Memory acquisition
medial nuclei function
Integraton of olfactory motor visceral sensory information
Relate information to emotional states
