PSY 1012 Lecture Notes - Lecture 49: Temporal Lobe, Hindbrain, Occipital Lobe

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23 Apr 2018
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Which of the following best defines a neurotransmitter? a chemical messenger that crosses the synaptic gap between neurons. Like a key in a lock, the shape of the ________ must fit the ________ to affect the postsynaptic neuron. neurotransmitter; receptor site. An antagonist is a drug or other chemical that: blocks a receptor site and inhibits or prevents a response in the receiving cell. An __________ is a drug or other chemical that binds to a receptor site and triggers a response in the cell. agonist. Nerves are made up of: bundles of axons. In combination, the brain and the spinal cord make up the __________ nervous system. central. The peripheral nervous system is made up of: all the nerves lying outside the central nervous system. In general the sympathetic nervous system _________, while the parasympathetic system __________. arouses and mobilizes; maintains and conserves. The brain"s ability to physically change in response to environmental stimulation is called: structural plasticity.

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