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12 Cards in this Set
- Front
- Back
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Nervous system |
A network of cells that carries information to and from all parts of the body |
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Neuroscience |
A branch of the life sciences that deals with the structure and functioning of the brain and the neurons, nerves, and nervous tissue that form the nervous tissue |
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Biological psychology |
The branch of neuroscience that focuses on the biological bases of psychological processes, behaviour, and learning, and it is the primary area associated with the biological perspective in psychology |
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Neuron |
The specialised cell in the nervous system that received and sends messages within that system |
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Parts of the neruon |
Dendrites - the parts of the neruon that receive messages from other cells Soma - the part of the cell that contains the nucleus and keeps the entire cell alive and functioning, responsible for maintaining life of the cell Axon - a fiver attached to the soma, and its job is to carry messages out to the other cells |
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Glial cells |
Help live, help grow, and help remove dead neruons |
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Myelin sheath |
Definition - fatty substances produced by certain glial cells that coat the axons of the neurons to insulate, protect, and speed up neural impulse Types - oligodendrocytes produce myelin in the brain and spinal cord (CNS) and Schwann cells produce myelin in the neurons of the body (PNS) |
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Neural impulse |
•Neruons are electrically charged with ions •Resting potential - the state of the neuron when not firing a neural impulse •Action potential - the release of the neural impulse consisting of a reversal of the electrical charge within the axon •All or none principle - referring to the fact that a neuron either fired completely or does not fire at all |
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Axon terminals |
Hold synaptic vesicles |
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Neurotransmitters |
Chemical messengers of the NS, chemical found in the synaptic vesicles that, when released, has an effect on the next cell |
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Synapse/synaptic gap |
Microscopic fluid filled space between the synaptic knob of one cell and the dendrites and surface of another cell |
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Receptor sites |
Three dimensional protiens on the surface of the dendrites or certain cells of the muscles and glands, which are shaped to fit only certain neurotransmitters |
