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24 Cards in this Set
- Front
- Back
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What are the 4 Boundaries of the Diencephalon?
Rostral: Caudal: Medial: Lateral: |
What are the 4 Boundaries of the Diencephalon?
Rostral: plane through the interventricular foramen and optic chiasm Caudal: Plane through posterior commisure and caudal border of mammillary bodies Medial: 3rd Ventricle Lateral: Internal Capsule |
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What are the (4) subdivisions of the Diencephalon?
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4 Division of Diencephalon:
1. Epithalamus 2. Hypothalamus 3. Thalamus (Dorsal Thalamus) 4. Subthalamus (Ventral Thalamus) |
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What four things does
the Epithalamus include? |
Epithalamus:
1. Stria Medullaris Thalami 2. Habenular Nuclei 3. Pineal Body 4. Posterior Commissure |
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What two things does
the Subthalamus include? |
Subthalamus:
1. Subthalamic Nucleus 2. Zona Incerta |
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What are the inputs to and outputs from the Thalamus?
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Inputs:
1. All sensory information except olfaction 2. Info from all motor systems. 3. ARAS (consciousness) Outputs: 1. To Cerebellum 2. To Ascending Reticular Formation 3. Limbic System |
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What are the inputs to the Thalamus Nuclei?
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Inputs:
1. All sensory information except olfaction 2. Info from all motor systems. 3. ARAS (consciousness) (Note: the cerebellum does not project directly to the SC. It goes through the Thalamus-->Cortex --> SC) |
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What are the outputs from the Thalamus Nuclei?
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Outputs:
1. To Cerebellum 2. To Ascending Reticular Formation 3. Limbic System |
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Give the nuclei contained in the following Subdivision of the Thalamus:
1. Anterior Nuclear Group: 2. Medial Nuclear Group: |
Give the nuclei contained
in the following Subdivision of the Thalamus: 1. Anterior Nuclear Group: Anterior Nucleus 2. Medial Nuclear Group: Dorsal Medial Nucleus |
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Give the nuclei contained in the following Subdivision of the Thalamus:
1. Lateral Nuclear Group: - Dorsal Tier : _____ - Ventral Teir : _____ |
Give the nuclei contained in the following Subdivision of the Thalamus:
1. Lateral Nuclear Group: - Dorsal Tier: Lat.Dorsal (LD), Lat.Post (LP) - Ventral Teir: Vent.Ant (VA) , Vent.Post (VP) The VP has 2 parts: 1. Vent.Post.Lat Nucleus (VPL) 2. Vent.Post.Medial (VPM) |
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What are the 6 Subdivisions of the Thalamus:
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1. Ant.Nuclear Group.
2. Med.Nuclear Group 3. Lat.Nuclear Group 4. Intralaminar Nuclear Group 5. Post.Nuclear Group 6. Other |
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The other 3 subdivisions of the Thalamus and the nuclei contained in them are:
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1. Intralaminar Nuclear Group -
- Rostral Intralaminar Nuclei - Caudal Intralaminar Nuclei 2. Posterior Nuclear Group -Pulvinar - LATERAL GENICULATE BODY - MEDIAL GENICULATE BODY 3. Ohter - Reticular Nuclei - Midline Nuclei |
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Which is the only Thalamic nuclei that projects to other Thalamic nuclei?
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The RETICULAR NUCLEUS is the only Thalamic nucleus that only projects to other Thalamic nuclei
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All Thalamic Nuclei receive input from some extrathalamic source:
TRUE/FALSE |
TRUE:
All Thalamic Nuclei receive input from some extrathalamic source. |
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What are the (3) Functional Categories of Thalamic Nuclei?
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The (3) Functional Categories of Thalamic Nuclei are:
1. Relay Nuclei - receive info from ascending systems and project to specific cortical areas. 2. Diffuse Connection Nuclei - receive info from various ascending systems. 3. Subcortical Nuceli - consist of single nuclear group (reticular nucleus). Sends axons to other thalamic nuclei, not cortex. |
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Which Functional Category of Thalamic Nuclei does not send axons to the cerebral cortex?
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Subcortical Nuclei do not send axons to the cerebral cortex
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Describe the direction and destination of information moving through the Relay Nuclei of the Thalamus?
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Relay nuclei receive ascending information and project to cortical areas (e.g, VP, MGB, LGB).
They also receive descending projections from the same cortical areas. |
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The Mammillary Body projects through the _______ Nuclear Group (Thalamic Nuclei) via the _______ Tract to reach the ________.
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The Mammillary Body projects through the ANTERIOR Nuclear Group (Thalamic Nuclei) via the Mammillary thalamic tract (MTT) to reach the CINGULATE GYRUS of Limbic Lobe.
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The Hippocampal Formation projects through the _______ Nuclear Group (Thalamic Nuclei) via the _______ to reach the ________.
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The Hippocampal Formation projects through the ANTERIOR Nuclear Group (Thalamic Nuclei) via the FORNIX to reach the CINGULATE GYRUS of Limbic Lobe.
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The BASAL GANGLIA project through the _______ Thalamic Nuclei to reach the ________.
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The BASAL GANGLIA project through the VENTRAL ANTERIOR Thalamic Nuclei to reach the SUPPLEMENTARY MOTOR AREA. (Medial premotor cortex)
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The SUBSTANTIA NIGRA PARS RETICULATA project through the _______ Thalamic Nuclei to reach the ________.
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The SUBSTANTIA NIGRA PARS RETICULATA project through the VENTRAL ANTERIOR Thalamic Nuclei to reach the SUPPLEMENTARY MOTOR AREA. (Medial premotor cortex)
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Basal Ganglia
The MEDIAL PALLIDAL SEGMENT projects through the _______ Thalamic Nuclei to reach the ________. |
The MEDIAL PALLIDAL SEGMENT projects through the VENTRAL ANTERIOR Thalamic Nuclei to reach the SUPPLEMENTARY MOTOR AREA. (Medial premotor cortex)
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Thalamic Nuclei
The INTRALAMINAR NUCLEI project through the _______ Thalamic Nuclei to reach the ________. |
The INTRALAMINAR NUCLEI project through the VENTRAL ANTERIOR Thalamic Nuclei to reach DIFFUSE PROJECTIONS TO FRONTAL LOBE.
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The AMYGDALA and OLFACTORY CORTEX project through the _______ Thalamic Nuclei to reach the ________.
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The AMYGDALA and OLFACTORY CORTEX project through the DORSAL MEDIAL Thalamic Nuclei to reach the PREFRONTAL CORTEX.
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The DEEP CEREBELLAR NUCLEI through the________ (Thalamic Nuceli) to reach the ________.
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The DEEP CEREBELLAR NUCLEI through the VENTRAL LATERAL NUCLEUS (VLp) to reach the LAT.PREMOTOR CORTEX and PRIMARY MOTOR CORTEX.
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