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During an action potential,sodium ions pour into the cell.

A) True
B) False

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If you wanted to block transmission of nerve impulses between successive neurons,you would design a drug to impair


A) axons.
B) dendrites.
C) synapses.
D) trigger zones.
E) nodes of Ranvier.

F) C) and D)
G) A) and E)

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If you administered an acetylcholine-destroying drug directly into the brain of a rat,this might lead to a mimicking of


A) epilepsy.
B) insomnia.
C) Parkinson disease.
D) Huntington disease.
E) Alzheimer disease.

F) C) and E)
G) A) and E)

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The type of neuron that conducts its message from the central nervous system toward an effector is the


A) synaptic neuron.
B) interneuron.
C) motor neuron.
D) sensory neuron.
E) Schwann cell.

F) A) and D)
G) A) and C)

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To improve communication between two neurons,it is necessary in many cases to have a healthy


A) synaptic neuron.
B) interneuron.
C) sensory neuron.
D) motor neuron.
E) Schwann cell.

F) A) and E)
G) C) and E)

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A condition that develops when GABA levels in the brain are deficient is


A) epilepsy.
B) insomnia.
C) Huntington disease.
D) Alzheimer disease.
E) Parkinson disease.

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

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If you wanted to stop the function of the sodium-potassium pump in a neuron,you could starve the cell of ATP because this pump performs


A) simple diffusion.
B) active transport.
C) osmosis.
D) phagocytosis.
E) facilitated diffusion.

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

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A condition that develops when serotonin levels in the brain are deficient is


A) insomnia.
B) epilepsy.
C) Alzheimer disease.
D) Parkinson disease.
E) Huntington disease.

F) A) and B)
G) B) and C)

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If you were asked to point to the site in the brain which controls automatic functions like breathing,you would put your finger on a picture of the brain at the


A) cerebellum.
B) hypothalamus.
C) medulla oblongata.
D) pons.
E) cerebrum.

F) C) and D)
G) A) and E)

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Homeostasis could be disrupted by drugs which affected any of: sympathetic division,parasympathetic division,hypothalamus.

A) True
B) False

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