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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Brain stem |
⭕Midbrain, pins, medulla oblongata ⭕Info between higher brain and spinal cord (relay) ⭕site of exit for cranial nerves s ⭕reticular formation (integration and filtering, arousal (RAS) |
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Medulla oblongata |
⭕Major relay centre ⭕involuntary function - vital and non vital reflex centres |
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Midbrain |
⭕contains substantia nigra |
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Cerebellum |
⭕Fine control of movement ⭕Integration of info -coordination of skilled VOLUNTARY movement - input from motor areas if cerebrum, sensory inout from muscle, viscera, joints, skin, eyes, eats - planning and initiation if movement - procedural memory - balance |
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Diencephalon |
⭕ Thalamus - relay station (sensory input, preliminary filtering and motor input) ⭕ Hypothalamus - homeostatic control centre (ANS and endocrine) - controls secretion from pituitary - part of limbic system - circadian rhythms |
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The Limbic system |
Interconnecting group of structures Basic emotions Neural centres controlling basoc behaviour (rewards pathways, motovation) Olfacation Hippocampus |
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The cerebrum |
Cerebral cortex and sub-cortical nuclei |
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Basal nuclei |
Collectional of neural bodies (nuclei or ganglia) Striatum, globus pallidus, substantia nigra and subthalamic nuclei Extrapyramidal motor system |
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Cerebral cortex |
Grey matter - cell bodies, dendrites, glia White matter - myelinated axon tracts Highly convoluted 2 hemispheres control contralateral side of body- connected by corpus callosum Higher functions |
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Nigrostriatal pathway |
DA 75% of DA in brain Cell bodies in substantia nigra Project to striatum Control of movement PD |
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Mesolimbic pathway |
DA VTA to limbic areas (nucleus accumbens, Hip and Am Behavioural and reward pathways Schizophrenia +ve symptoms Drugs of abuse (cocaine, amphetamines) |
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Mesocortical pathway |
DA VTA to frontal cortex Cognition and thought Scizophrenia -ve symptoms |
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Tuberohypophyseal (tuberoinfundibular) |
DA Hyp to pituitary Control of secretion DA inhibits prolactin secretion |
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Noradrenaline pathways |
Cell bodies in brainstem LC in pons LTA (NTS - CV, GI, Resp function) Project to: Cortex, Hyp, limbic areas, C, spinal cord a1, a2, B1, B2 |
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ACh pathways |
Nucleus basalis to cortex Septal nuclei to hippocampus Brainstem to thalamus Cholinergic interneurons in striatum involved in control of movement (PD) Roles in arousal and reward pathways |
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5-HT pathways |
Brainstem to most parts of CNS: C, Hip, Am, Hyp, Th, cortex, str N.B limbic system Sleep, mood, feeding, sensory transmission, hallucinations |
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