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PSY 1101 Lecture Notes - Positron Emission Tomography, Butyric Acid, Electroencephalography

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skytoad178
3 Oct 2012
School
University of Ottawa
Department
Psychology
Course
PSY 1101
Professor
Brenda Baird

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PSY 1101 Full Course Notes
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PSY 1101 Full Course Notes
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Document Summary

A nerve is a collection of axons. From cns to body is efferent (motor), from body to cns is afferent (sensory) Firing a neuron: -70mv, the neuron fires around -55mv, +na enters (sodium), charge is reduced, +k (potassium) exits, threshold restored. Ion channels: (open/close) and ion transporters regulate (pump) the number of ions inside and outside the axon. Neurotransmitters in the synapse are reabsorbed into the sending neurons through the process of reuptake. This process applies the brakes on neurotransmitter action. Gaba relaxes you (gamma-amino butyric acid) (inhibitory) Acetylcholine (attention, learning & memory muscles; ad) Antagonist: opposes action of a neurotransmitter (blocks neurotransmitter from firing) 15 20 neurotransmitters known at present. Eeg reaction, firing of the action potential. Ct (computed tomography) scan: a series of x-ray photographs taken from different angles and combined by computer into a composite representation of a slice through the body; also called cat scan.

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Related Questions

37. Neurotransmitter substances are stored in the of the neuron, and after an action potential fires at the axon terminal, the neurotransmitters A) dendrites, are released into the soma of the neuron B) synaptic vesicles; are released into the axon of the neuron C) glial cells; bind to receptor sites on the post synaptic membrane D) synaptic vesicles, are released into the synapse E) dendrites; are deactivated and broken down in the axon of the neuron

37. Neurotransmitter substances are stored in the of the neuron, and after an action potential fires at the axon terminal, the neurotransmitters A) dendrites, are released into the soma of the neuron B) synaptic vesicles; are released into the axon of the neuron C) glial cells; bind to receptor sites on the post synaptic membrane D) synaptic vesicles, are released into the synapse E) dendrites, are deactivated and broken down in the axon of the neuron

of the transmitting neuron and the 34. Neurotransmitters cross the synaptic gap between the of the receiving neuron. a. axon terminal; dendrite b. dendrite; axon terminal c. nucleus, soma d. soma, nucleus