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PSYCH261 Chapter 2: Biological Psychology 10th Edition Chapter 2

206 views4 pages
emeraldalpaca934
16 Oct 2011
School
University of Waterloo
Department
Psychology
Course
PSYCH261
Professor
James Danckert

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Document Summary

Local interneurons: form circuits with other neurons; analyze small pieces of info. Relay interneurons: connect circuits of local interneurons between brain regions. Structure and function of cells of the nervous system. Behaviour: function of nervous system; body: has cells specialized for detecting environmental events. ; eg. light, sound waves, odors, taste, touch. Interneurons: between sensory and motor; entirely within cns. Nervous system: 2 parts; cns (skull + spine) and pns (nerves + most sense organs) Neuron: nerve cell; inf-process & info-transmitting element of ns. 4 regions: i) cell body (soma); ii) dendrites; iii) axon; iv) terminal buttons. Soma: contains nucleus and machinery for life processes of cell. Dendrites ( trees"); receive message; take info from synapse and connecting terminal button. Axon: tube; partly covered with myelin sheath; carrier action potentional from axon end to t. b. Multipolar neuron: 1 axon and many dendrites; bipolar neuron: 1 axon and 1 dendrite (usu. sensory) > cns; usu. for touch, temp. changes, joints.

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Related Questions

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

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