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Plant cognition

Unit 3 (Myers)

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SEQ CHAPTER \h \r 1AP Psychology Name Unit III: Biological Bases of Behavior Homework Assignments Read the assigned pages of your textbook for understanding of the content. To do this you need to (1) answer the provided guided reading questions OR (2) take notes on your own. You do NOT need to do both! Module 9: pages 76-80 What is the main focus of biological psychology? The main focus of biological psychology are the links between biological and psychological processes. What is a neuron? A neuron is a nerve cell; the basic building block of the nervous system. Identify the parts of a neuron. Dendrite: a neuron?s bushy, branching extensions that receive messages and conduct impulses toward the cell body

Ch 28 Biology

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Topic 6.5 The Nervous System 0 IB Objectives Neurons transmit electrical impulses. The myelination of nerve fibers allows for saltatory conduction. Neurons pump sodium and potassium ions across their membranes to generate a resting potential An action potential consists of depolarization and repolarization of the neuron. Nerve impulses are action potentials propagated along the axons of neurons. Propagation of nerve impulses is the result of local currents that cause each successive part of the axon to reach the threshold potential. Synapses are junctions between neurons and between neurons and receptor or effector cells. When presynaptic neurons are depolarized they release a neurotransmitter into the synapse.
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