PSYCH 101 Chapter 2.1: How Do Our Nervous Systems Affect Thinking and Behavior
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PSYCH 101 Full Course Notes
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Contain massive numbers of nerve cells (2) peripheral nervous system (pns) Consists nerve cells in soft organs in rest of the body. Pns registers sensory signal and transmits information to cns. Directs pns to perform specific behaviors (moving away) Neurons are the basic units of our nervous systems. Both divisions of the nervous system are made of smaller units (neurons/nerve cells: basic units of the human nervous system. Individual neurons receive, integrate and transmit information in the nervous system: they communicate selectively with other neurons, not randomly. This makes possible all complex aspects of human thought and behavior: develop and strengthen through maturation and experience. Actually communicate by sending chemicals into tiny gaps between terminal buttons of the sending neuron and dendrites of the receiving neurons. Chemicals leave one neuron, cross the synapse, and pass signals along to the dendrites of other neurons. Membrane: thin layer covering parts of neurons, separates inside of the neuron from outside environment, semipermeable.
