ch04 - Chapter 4 Neuroscience The study of the brain and...

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Unformatted text preview: Chapter 4 Neuroscience The study of the brain and the nervous system. Chapter Outline 1) How Do Scientists Study the Nervous System? 2) What Cells Make Up the Nervous System? 3) How Do Neurons Work? 4) How Is the Nervous System Organized? 5) Structures of the Brain 6) Building the Brain How We Develop 7) Brain Side and Brain Size How We Differ 8) Neurological Diseases When Things Go Wrong 1) How Do Scientists Study the Nervous System? Examining autopsy tissue. Testing the behavior of patients with brain damage. Electroencephalograms (EEG) - Recording brain activity from the surface of the scalp. Neuroimaging 2) What Cells Make Up the Nervous System? Neurons- Main building block of the brain. Sensory- Gather sensory information. Motor- Communicate information to the muscles. Interneuron- Carry information between neurons in the brain and the spinal cord. Glia- Cells that help support neurons. A strocytes- Creates blood brain barrier, influence communication between neurons, and help heal brain damage  One type of astrocytes is the stem cell- create new neurons Oligodendroglia- Provide myelin to speed up transmission of neurons. Microglia- Clean up dead cells and prevent infection in the brain 2) What Cells Make Up the Nervous System? Cell Body- contains nucleus which provides energy for the neuron (C) Dendrites- receive messages from other neurons (B) Axon- carry information away from the cell body (D). Axon Terminals- transmit signals to the dendrites (E). Myelin Sheath- A substance that speeds up the firing of the neuron (F). Nodes of Ranvier- Name for the small gaps on the neuron that have no myelin covering (A). 3) How Do Neurons Work?...
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This note was uploaded on 09/23/2011 for the course PSY 1103 taught by Professor Anderson during the Fall '08 term at University of Central Oklahoma.

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ch04 - Chapter 4 Neuroscience The study of the brain and...

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