PSY BEH 11A Chapter Notes - Chapter 3: Functional Magnetic Resonance Imaging, Axon Terminal, White Matter
22 Mar 2018
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Document Summary
Multiple sclerosis: disorder of nervous system that is typically diagnosed between the ages 20-40. Affects brain & spinal cord movements become jerky & lost coordination. Help us understand how nervous system is critical in our ability to think & behave normally. Nervous system: responsible for everything people think, feel, do. Basic unit: nerve cells ( neurons ): receive, integrate, transmit info in ns. Communicate selectively with other neurons to form circuits, neural networks. Central nervous system (cns) : consists of brain & spinal cord. Organizes & evaluates info > directs pns to perform specific behaviors. Peripheral nervous system (pns) : consists of al the other nerve cells in rest of body. Excitable: powered by electrical impulses & communicate with other nerve cells through chemical signals. Reception phase: take in chemical signals from neurons. Transmission: pass their own signals to yet other receiving neurons. 3 types of neurons through spinal cord.
