Term
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Definition
Fluid-filled cavities in brain
Lateral, 3rd, 4th, cerebral aqueduct (connects 3rd and 4th) |
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Term
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Definition
Buoyancy
Protects
Never sits in one spot
Created in the choroid plexus, lateral and 3rd ventricles |
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Term
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Definition
Hydrocephalus:Abnormal accumulation of cerebrospinal fluid (CSF) in the ventricles, or cavities, of the brain
Schizophrenia
Alzheimers |
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Term
| dicephalon and structures |
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Definition
Middle part of the brain
Structures: Thalamus and Hypothalamus |
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Term
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Definition
Role in the basal ganglia
Relay center for sensory information
Interthalamic adhesion |
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Term
| Thalamus as Sensory Relay Station |
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Definition
Sorts & groups signals, except olfaction
Lateral and medial Geniculate Nucleus |
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Term
| Lateral Geniculate Nucleus |
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Definition
lgn
Vision
Color & brightness information
Primary Visual Cortex |
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Term
| Medial geniculate nucleus |
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Definition
Hearing
Primary Auditory Cortex |
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Term
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Definition
a band of gray matter joining the thalami;
joining of the two thalami in the center of the third ventricle.
Called also thalamic intermediate mass. |
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Term
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Definition
Striatum (Caudate & Putamen)
Thalamus*
Globus Pallidus
Subthalamic Nucleus
Substantia Nigra |
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Term
| Basal Ganglia: functions and location |
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Definition
motor controls
Movement, motor control
Cortico-striatal loop
implicit memory
look for rams horns |
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Term
| Cortico-striatal loop striatum use |
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Definition
| Caudate & Putamen receive input from cortex |
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Term
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Definition
| striatum inhibits the globus pallidus which allows the thalamus to activate, excite the cortex |
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Term
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Definition
Black substance
Produces dopamine: Involved in reducing muscle contradiction |
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Term
| Basal Ganglia & Implicit memory |
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Definition
Important in generating movements influenced by memory: Learned skills
No awareness of act of remembering |
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Term
| Disorders of basal ganglia |
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Definition
Problems with movement:
Suppressing unwanted movement
Unable to initiate movement
Pathways are compromised |
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Term
| Damage to globus pallidus |
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Definition
Involuntary twisting/turning of limbs
Not inhibiting the thalamus |
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Term
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Definition
Involuntary movements (tremors)
Introduction of new movements |
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Term
| Parkinsons Disease: where, symptoms, causes |
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Definition
not enough dopamine, Substantia Nigra is losing the cells to create dopamine.
Inability to initate movement
Dopamine is needed for voluntary movement
Substantia Nigra
Akinesia: unable to move
Bradykinesia: slow movements
Tremors
Cogwheel rigidity: rigid
Other problems
Memory
Attention
Reasoning
Depression |
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Term
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Definition
Levodopa (l-dopa): Synthetic form of dopamine
Pallidotomy: Lesioning the globus pallidus
Deep brain Stimulation: rebalance and supresser tremors |
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Term
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Definition
Result of anti psychotics
Dopamine receptors become too sensitive |
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Term
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Definition
Disorder of BG, specifically globus pallidus
The inability to inhibit the thalamus |
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Term
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Definition
Sydenhams Chorea, St. Vitus Dance
Inability to suppress movements of the limbs and the face |
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Term
| I am the motor movement volume control |
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Definition
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Term
| I produce dopamine to send to the basal ganglia |
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Definition
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Term
| Together with the putamen, my alias is the striatum |
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Definition
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Term
| I can be found dorsal to the substantia Nigra/ redirect |
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Definition
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Term
| I am memory without awareness |
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Definition
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Term
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Definition
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Term
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Definition
| Striatum globus pallidus subthalamic nucleus globus pallidus thalamus |
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Term
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Definition
| Superior Colliculus is orientating vision to new stimuli, so issues with shifting visual attention, functionally blind: can’t operate in their environment |
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Definition
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