BIOL 460 Lecture Notes - Lecture 10: Substantia Nigra, Striatum, Medulla Oblongata
26 Sep 2016
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Thalamaus relay station hypothalamus pituitary gland cerebellum and pons cerebellum: balance, metencephelon pons: fiber tract, relays information between cerebellum and cerebrum raphe nucleus: part of pons, synthesizes serotonin. Myelencephalon: brainstem or medulla oblongata, important for control of autonomic nervous system heart rate, respiratory rate. Mood and emotion: depression, bipolar disorder. Ssris: serotonin specific reuptake inhibitors (zoloft, paxil, prozac, luvox, mao breaks down serotonin. Cell bodies are in raphne nuclei and axons are in telencephalon. Dopamine: produced from tyrosine: nigrostriatal dopamine system. Black or dark substance b/c byproduct of melanin synthesis. Deficiencies: parkinson"s disease (2nd most common after alzheimers: cause of death: pneumonia, l-dopa helps make dopamine, mesolimbic dopamine system. Limbic system: masses of gray matter (in telencephalon) Emotions are controlled by limbic system: behavior and reward. Limbic system rewards animals for their behavior (fitness and natural selection) Cocaine and ritalin are dopamine transporter blockers, enhance amount of dopamine in synapse. amphetamines: dopaminergic.
