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1 the chemical messengers that travel across synapses from one neuron to the next
2 the low-level electrical charge in a neuron that is not firing
3 the tiny, sack-like containers for neurotransmitters
4 a waiting time, during which the neuron is reset before another action potential can begin
5 the release, or firing, of an electrical impulse that travels through the axon
6 the cells that carry information to the brain from the senses (sight, hearing, smell, taste, touch)
7 the openings in dendrites that match specific neurotransmitters like a lock fits a specific key
8 the small branches at the end of an axon that form connections with the next neuron
9 the idea that specific parts of the brain do specific things
10 the neurons that serve only to connect to other nearby, rather than reaching father out into the body
11 the cells that carry messages from the brain to the muscles
12 a protective sleeve of fatty material that surrounds the axon
13 the cells that support and protect neurons throughout the brain
14 the neurotransmitters involved in reducing pain and increasing pleasure
15 the level of electrical charge required to trigger an action potential
16 the branches at the end of neurons that receive signals from other neurons
17 the process when a neurotransmitter is taken back up by the sending neuron after failing to land in a receptor site in the receiving neuron
18 the cells that facilitate communication within the nervous system
19 the gap between two connecting neurons
20 an automatic motor response to sensory input
21 the cell body - the large central region that performs the basic activities, including the production of energy, to keep the neuron functional
22 the part of the neuron that carries information toward other neurons
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