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Chapter 3
The Biological Bases of Behaviour
9
Psychology
Undergraduate 1
03/22/2014

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Term
neurons
Definition
individual cells in the nervous system that receive, integrate, and transmit information
Term
soma/cell body
Definition
contains the cell nucleus and much of the chemical machinery common to most cells
Term
dendrites
Definition
the parts of a neuron that are specialized to receive information
Term
axon
Definition
a long, thin fibre that transmits signals away from the soma to other neurons or to muscles or glands
Term
myelin sheath
Definition
insulating material, derived from glial cells, that encases some axons
Term
terminal buttons
Definition
small knobs that secrete chemicals called neurotransmitters
Term
neurotransmitters
Definition
chemicals that serve messengers to activate neighbouring neurons
Term
synapses
Definition
a junction where information is transmitted from one neuron to another
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