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Depolarization is associated with:


A) inhibition
B) refractory period
C) resting potential
D) action potential

E) None of the above
F) B) and D)

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Outline the main functions associated with each of the subcortical structures in the forebrain.

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Who is Phineas Gage? How did his life provide researchers with information about the functioning of specific brain regions?

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Phineas Gage was a railroad construction...

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Chemicals that are released into the bloodstream by gland to help control internal regulatory functions are called ____________________.

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Dr.Allenby has implanted electrodes in the brain of a cat.By passing differing electrical frequencies through the wires Dr.Allenby finds that he can cause the cat to fall into a deep sleep, or awaken suddenly.Based on this information, it is most likely that the electrodes have been implanted in the cat's:


A) cerebellum
B) hypothalamus
C) thalamus
D) reticular formation

E) All of the above
F) B) and D)

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Blood flow to active regions of the brain is controlled by:


A) the myelin sheath
B) the reflex arc
C) glial cells
D) interneurons

E) A) and B)
F) A) and C)

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Neural messages are transmitted from your brain to your fingers by the:


A) limbic system
B) central nervous system
C) somatic nervous system
D) autonomic nervous system

E) None of the above
F) A) and B)

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The small gap that exists between adjacent neurons is called the:


A) synapse
B) soma
C) axon hillock
D) sodium/potassium pump

E) A) and B)
F) A) and C)

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Individuals with schizophrenia have abnormal levels of which of the following in their brains?


A) dopamine
B) serotonin
C) acetylcholine
D) GABA

E) B) and D)
F) A) and D)

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The cells in the nervous system that receive and transmit information are ____________________.

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Within the limbic system, the structure that is thought to be critically involved in the formation of memories is the ____________________.

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Both protein molecules and potassium ions:


A) carry a positive charge
B) carry a negative charge
C) are concentrated inside the neuron's cell body
D) are concentrated outside the neuron's cell body

E) All of the above
F) A) and C)

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Norbert has a brain tumor that is pressing on areas of his right parietal lobe.Based on what is known about the functions of the lobes within the cerebral cortex, you should predict that Norbert will have difficulty:


A) moving portions of the right side of his body
B) moving portions of the left side of his body
C) sensing touch and temperature on the left side of his body
D) sensing touch and temperature on the right side of his body

E) B) and C)
F) All of the above

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An excitatory message causes the cell's electrical potential to become:


A) more positive
B) more negative
C) less negative
D) less positive

E) C) and D)
F) A) and B)

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Reflex pathways require no input from the brain, and if the spinal cord is severed, blocking communication between most of the body and the brain, reflexive responses can still occur.

A) True
B) False

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Janet touches a stove that is warm; Pierce touches a stove that is hot.Based on what is known about action potentials you could predict that, for these two individuals, the action potentials:


A) in Pierce's nervous system will travel more quickly because the incoming signal is more intense
B) in Janet's nervous system will be weaker because the incoming signal is less intense
C) will be the same due to the all-or-none principal
D) in Pierce's nervous system will travel a shorter distance because the incoming signal is more intense

E) B) and C)
F) A) and D)

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What aspect of an individual is described by his or her genotype and phenotype?

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An individual's genotype and phenotype d...

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Brain researchers using ____________________ have an individual ingest a small amount of a harmless radioactive substance in order to produce a pictorial blueprint of the person's brain activity.

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positron e...

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A continuously firing neuron is:


A) maladaptive
B) physically impossible
C) adaptive
D) psychologically impossible

E) A) and B)
F) A) and D)

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The nodes of Ranvier are:


A) a network of fibers within the medulla associated with attention and alertness
B) tiny areas on the surface of the soma that are sensitive to neurotransmitters
C) small sacs found in the axon terminal that store neurotransmitters
D) gaps in the myelin sheath that allow the neural signal to travel at a greater speed

E) B) and C)
F) C) and D)

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