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Why is the shape and structure of a neuron important?
The neuron is often thought of as the "building block" of the nervous system, and for good reason. [ The neuron is the fundamental unit which makes up a nerve pathway, neural firing (neurotransmitter release) takes place at the level of the neuron, and many aspects of the physiology-behavior relationship can be explained in terms of activity at the neuronal level. Therefore, we will begin our discussion of the nervous system with a description of the external structure of the neuron. In a general sense you can think of the neuron as a miniature self-contained information processor. It
receives inputs, processes information, and generates outputs. The structure most associated with receiving is the dendrite, the structure most associated with processing is the cell body (also called soma), and the process most associated with the output is the axon, more specifically the terminal buttons (see Figure 1). If we move to a slightly more detailed level we will find that neural signals most often are received by specialized areas on the dendrites called dendridic spines. As for the cell body, the "processing" actually occurs in the nucleus, within the cell body. Continuing our analogy of the nerve cell as an independent information processor, we can think of the nucleus as the "brain" of the cell, where many important cellular activities are initiated ]
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Asked 1/18/2013 12:33:31 PM
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Solve the equation: 5x + 9 = 1 A: x = -3/5 B: x = -8/5 C: x = 5/8 D: x = 8/5
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Updated 1/30/2016 11:17:16 AM
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5x + 9 = 1
5x = 1 - 9
5x = -8
x = -8/5
Added 1/30/2016 11:17:16 AM
This answer has been confirmed as correct and helpful.
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Solve the equation. 4(p - 2) = 3(p + 1) Choose one answer. a. p = -5 b. p = -11/7 c. p = 2 d. p = 11
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Asked 1/18/2013 5:56:48 PM
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Simplify each expression. 6x2 - 3(x - x2)
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Updated 7/18/2015 6:30:24 PM
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6x^2 - 3(x - x^2)
= 6x^2 + (-3)(x) + (-3)(-x^2)
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Added 7/18/2015 6:30:12 PM
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Updated 6/6/2014 3:08:15 AM
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5a - 3a + 1 = 2a + 1
Added 6/6/2014 3:08:15 AM
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Confirmed by andrewpallarca [6/6/2014 9:45:11 AM]
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