PS268 Chapter Notes - Chapter 4: Vasopressin, Neuroglia, Lipophilicity
Document Summary
Made up of the nerves outside the brain and spinal cord and consists of somatic and autonomic nervous system. Autonomic ns controls involuntary functions ie heart rate acetylcholine slows heart down divided into sympathetic and parasympathetic inhibition of vagus nerve is example of parasympathetic, relaxed physiological state in sympathetic branch, norepinephrine is the neurotransmitter, fight or flight. Central nervous system consists of brain and spinal cord. The brain cerebral cortex, process visual info, auditory and somatosensory info, higher mental processes basal ganglia comprise of caudate nucleus, putamen and globus pallidus, basal ganglia are important for maintaining muscle tone parkinson"s disease is damage to basal ganglia. Dopamine cells in the nucleus accumbens receive input from dopamine fibers which form the mesolimbic dopamine pathway, mediates spcyhotic behaviour ie schizophrenia the overactivatino of dopamine neurons in this pathway produces hallucinations which are controlled using dopamine blocking drugs.
