PSY100Y5 Lecture Notes - Lecture 3: Membrane Potential, Hypothalamus, Curare
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PSY100Y5 Full Course Notes
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Document Summary
30 multiple choice, 10 multiple choice per chapter. Communication in the nervous system, organization of the nervous system and researching the brain. Dendrites: receive information from other neurons, can be specialized(specific) or general. Cell body (soma): creates transmitter molecules which are synapses. Inter neuron: one part of the brain to another, when u learn something new, new neuron connection is made, makes new neural pathways, myelin created when task is done over and over again, connections used multiple times. Stimulation of the nerve membrane can open ion channels in the membrane: na+ ions flowing in will depolarize the membrane (movement from -70 mv to say -60 mv. The action potential: graded potentials are generated at the dendrites and are conducted along the membrane to the axon hillock. Details of the synapse: drugs take effect at synaptic cleft, leads to disease, disorder, dysfunction. 40 neuropeptides: acetylcholine (ach, known for ability to control motor control.
