Exam 2: The Biological Basis of Behavior

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Despite its dangers, a young man continues to take cocaine because of the feelings of euphoria it produces for him. This powerful arousal of his nervous system is probably due to cocaine's ability to ________.

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The limbic system structures that seem especially important to emotions related to self- preservation and when stimulated cause fear or panic reactions or attack behaviors are the ________.

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Which of the following have the most similar genetic composition?

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Hypoglycemia results from secretion problems in the ________.

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The part of the brain most people think of when they talk about the brain is the ________.

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Psychobiology overlaps with a much larger disciplinary field called ________, which specifically focuses on the study of the brain and the nervous system.

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Corey was in an automobile accident that resulted in an injury to her brain. She now has difficulty with her hearing and her ability to recognize faces. The part of her brain most likely injured was her ________ lobe.

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There are approximately ________ neurons in the brain of an average human being.

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A neuron will fire ________.

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Tiny sacs in a synaptic knob that release chemicals into the synapse are called ________.

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Both CT scanning and MRI provide pictures of brain activity.

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The branch of the autonomic nervous system that calms and relaxes the body is the ________ division.

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The effects of genetics are not always immediate or fully apparent.

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Terminal buttons are located ________.

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From an evolutionary perspective, for mate selection in humans, it is most advantageous for ________.

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When sodium ions flow into a neuron and depolarize it, they create ________.

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Neurons that carry messages from the spinal cord or the brain to the muscles and glands are called ________ neurons.

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Briefly describe the functions of the reticular formation and the limbic system. Explain what problems can result from damage or destruction of these areas.

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Describe the process by which a neuron moves from a resting state to firing and then back to a resting state.

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Immediately after firing, a neuron cannot fire again no matter how strong the incoming messages may be. This period is called the ________ period.

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