Dorsal Thalamus Medical Neuroscience Dr Wiegand The Diencephalon
- Slides: 18
Dorsal “Thalamus” Medical Neuroscience Dr. Wiegand
The Diencephalon
The Diencephalon Interthalamic adhesion Thalamus Epithalamus (Pineal & Habenula) Hypothalamus Pituitary Subthalamus
The “Dorsal” Thalamus Sensory integration nucleus – gateway to the cerebral cortex ¢ Afferents from both rostral and caudal central nervous system structures ¢ Efferents primarily to cerebral cortex via four principal “radiations” ¢ Associated with motor, sensory, limbic and vegetative functions ¢
Medial n. Lateral n. 3 rd Ventricle * * Interthalamic adhesion Internal medullary lamina Internal capsule Anterior n. External medullary lamina Reticular n.
General Organization medial nuclei lateral nuclei anterior nuclei internal medullary lamina
dorsal tier pulvinar geniculate bodies ventral tier
Frontal Section intralaminar nuclei 3 rd Ventricle internal medullary lamina reticular nuclei external medullary lamina
Thalamic Nuclei ¢ ¢ Anterior Lateral l Dorsal Tier • lateral dorsal • lateral posterior • pulvinar l Ventral Tier • ventral anterior • ventral lateral • ventral posterior (VLP & VPM) • posterior nucleus
Thalamic Nuclei ¢ Medial l l ¢ ¢ medial/medial dorsal midline nuclei Pulvinar Geniculate bodies Reticular Intralaminar l l centromedian parafasciular
Specific Sensory Nuclei afferent nucleus efferent function Dorsal Column & Anterolateral System VPL Postcentral Gyrus Somesthesis Trigeminal System VPM Postcentral Gyrus Somesthesis Inferior Colliculus MGB Temporal lobe Hearing Retina LGB Occipital lobe Vision
Specific Cortical Relay Nuclei afferent nucleus efferent function Cerebellum VL Precentral Gyrus & Frontal cortex Movement & Motor Planning Globus Pallidus VA Premotor Cortex Motor Planning
Specific Association Nuclei afferent nucleus efferent function Hypothalamus Anterior Cingulate Limbic Amygdala MD Prefrontal Cortex Limbic Hypothalamus & Cingulate LD Cingulate Emotions Parietal lobe & Sup. Colliculus LP Parietal Cortex Sensory integration Anterolateral System Posterior Insula, Cingulate and Association Cortices Pain Sup. Colliculus Pulvinar Temporal, Parietal and Occipital Lobes Vision
Non-Specific Nuclei afferent nucleus efferent function Reticular Formation Midline Motor / Premotor Basal Ganglia & Reticular Formation Intralaminar Striatum & Cortex Motor Integration Cortex & Brainstem Reticular Thalamus Thalamic Modulation Entire Cortex Arousal/Limbic
Caudate Nucleus Lentiform Nuclei Thalamus Internal Capsule
- Diencephalon boundaries
- Brain diencephalon
- 脳幹網様体
- Diencephalon részei
- Diencephalon
- Cavity of diencephalon
- Superior colliculus
- Mesencephalon diencephalon telencephalon
- Diencephalon
- Area preoptica
- Habenular nuclei
- Function of diencephalon
- Epithalamic def
- Diencephalon
- Pulvinar of thalamus
- Blog ir
- Lens placode embryology
- Sheep olfactory bulb compared to human
- Telencephalon and diencephalon