PSY100H1 Chapter Notes -Color Blindness, Depth Perception, Basilar Membrane
65
PSY100H1 Full Course Notes
Verified Note
65 documents
Document Summary
Brain: glia - structural support, nourishment, removal of waste, neurons - receive, integrate and transmit info. Dendrites branches from soma that receive info. Axon thin fibre that transmits info from one neuron to the other. Myelin sheath encloses axon and speeds up the transmission of signals, if damaged multiple sclerosis. Terminal buttons neurotransmitters messengers that activate other neurons. Synapse junction where info is transmitted from one neuron to the other. Dentrites soma axon (myelin sheath)--> synapse- terminal buttons (neurotransmitters) Cell membrane open positive sodium ions less negative charge, or positive. Time period after action potential during which another action potential cannot begin. Weaker stimuli does not produce weaker action potential, however the rate is smaller at which they fire. The microscopic gap between the terminal button of one neuron and the cell membrane of the other. Neuron that sends the signal across the gap. Most are absorbed by the postsynaptic neuron through the process of reuptake.
