PSY 0010 Chapter 2: Psych Biopsych ch.2notes.docx
Document Summary
Neuroscience: franz gall (1800"s, bumps on skull determines where personality and behavior come from, study of neural structures, behavior, and learning. Nervous system: central nervous system (brain and spinal cord, peripheral nervous system (everything else, connects cns to rest of body. Also, interneurons are 3rd type from the reflex arc. Nerves: part of pns, connects muscles, glands, and sense organs to cns. Pns: autonomic (automatic, sympathetic (arousing): fight or flight, parasympathetic (calming): rest and digest, somatic (voluntary control, on purpose) Synapse: vesicles (nt"s) hook up with compatible receptor sites in the gap. Neurotransmitters: nt molecule has structure that fits receptor site on receiving neuron like a lock and key. Neural communication: excitatory nt, causes receiving neuron to fire, agonists: mimics/enhances nt effect on receptor sites. Inhibitory nt: causes receiving cell to stop firing, antagonist: block/reduce response to nt"s, reuptake nt"s in synapse reabsorbed into the sending neuron, stops nt action.
