neurons - Neurons and Synapses Types of Neurons Sensory...

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1 Neurons and Synapses Types of Neurons Sensory Motor Interneurons
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2 Spinal Cord Brain Sensory Neuron Sensory Neurons INPUT From sensory organs to the brain and spinal cord. Drawing shows a somatosensory neuron Vision, hearing, taste and smell nerves are cranial, not spinal
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3 Spinal Cord Brain Sensory Neuron Motor Neuron Motor Neurons OUTPUT From the brain and spinal cord To the muscles and glands.
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4 Spinal Cord Brain Sensory Neuron Motor Neuron Interneurons Interneurons carry information between other neurons only found in the brain and spinal cord.
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5 Structures of a neuron
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6 Detailed
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7 The cell body Round, centrally located structure Contains DNA Controls protein manufacturing Directs metabolism No role in neural signaling Contains the cell’s Nucleus
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8 Dendrites Information collectors Receive inputs from neighboring neurons Inputs may number in thousands If enough inputs the cell’s AXON may generate an output
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Dendritic Growth Mature neurons generally can’t divide But new dendrites can grow Provides room for more connections to other neurons New connections are basis for learning
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This note was uploaded on 04/03/2012 for the course PHIL 111 taught by Professor Jean during the Spring '06 term at Cal Poly.

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neurons - Neurons and Synapses Types of Neurons Sensory...

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