Pregunta 1
Pregunta
The axons of certain neurons are covered by a layer of fatty tissue that helps speed neural transmission. The tissue is...
Respuesta
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Dopamine
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The Myelin Sheath
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Acetylcholine
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An Endophin
Pregunta 2
Pregunta
A strong stimulus can increase the...
Respuesta
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Speed of the impulse the neuron fires
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Intensity of the impulse the neuron fires
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Number of times the neuron fires
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Threshold that must be reached before the neuron fires
Pregunta 3
Pregunta
The pain of heroin withdrawal may be attributable to the fact that...
Respuesta
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Under the influence of long-term heroin use the brain ceases production of endorphins
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Under the influence of long-term heroin use the brain ceases production of all neurotransmitters
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During heroin withdrawal the brain’s production of all neurotransmitters is greatly increased
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long-term heroin use destroys endorphin receptors in the brain
Pregunta 4
Pregunta
Which is the correct sequence in the transmission of a simple reflex?
Respuesta
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Sensory neuron, Interneuron, Sensory neuron
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Interneuron, Motor neuron, Sensory neuron
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Sensory neuron, Interneuron, Motor neuron
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Interneuron, Sensory neuron, Motor neuron
Pregunta 5
Pregunta
In a resting state, the axon is...
Respuesta
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Depolarized, with mostly negatively charged ions outside and positively charged ions inside
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Depolarized, with mostly positively charged ions outside and negatively charged ions inside
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Polarized, with mostly negatively charged ions outside and positively charged ions inside
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Polarized, with mostly positively charged ions outside and negatively charged ions inside
Pregunta 6
Pregunta
Which of the following is typically controlled by the right hemisphere?
Pregunta 7
Pregunta
The part of the human brain that is most like that of a fish is the...
Respuesta
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Cortex
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Limbic System
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Brainstem
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Right Hemisphere
Pregunta 8
Pregunta
Voluntary movements, such as writing with a pencil, are directed by the...
Pregunta 9
Pregunta
A neuron will generate action potentials when it...
Respuesta
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Remains below its threshold
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Receives an excitatory input
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Surpasses its threshold of receiving more excitatory than inhibitory inputs
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Is stimulated by a neurotransmitter
Pregunta 10
Pregunta
Which is the correct sequence in the transmission of a neural impulse?
Respuesta
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Axon, Dendrite, Cell body, Synapse
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Dendrite, Axon, Cell body, Synapse
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Synapse, Axon, Dendrite, Cell body
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Dendrite, Cell body, Axon, Synapse
Pregunta 11
Pregunta
Following a head injury, a person has ongoing difficulties staying awake. Most likely, the damage occurred to the...
Respuesta
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Thalamus
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Corpus callosum
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Reticular formation
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cerebellum
Pregunta 12
Pregunta
An experimenter flashes the word FLYTRAP onto a screen facing a split-brain patient so that FLY projects to her right hemisphere and TRAP to her left hemisphere. When asked to say what she saw, the patient will...
Respuesta
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Say she saw FLY
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Ssay she saw TRAP
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Say she saw FLYTRAP
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Say she saw TRAPFLY
Pregunta 13
Pregunta
Which of the following is typically controlled by the left hemisphere?
Pregunta 14
Pregunta
Which of the following are governed by the simplest neural pathways?
Respuesta
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Emotions
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Physiological drives, such as hunger
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Reflexes
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Movements, such as walking
Pregunta 15
Pregunta
Melissa has just completed running a marathon. She is so elated that she feels little fatigue or discomfort. Her lack of pain is probably the result of the release of...
Respuesta
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ACh
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Endorphins
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Dopamine
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Norepinephrine
Pregunta 16
Pregunta
I am a relatively fast-acting chemical messenger that affects mood, hunger, sleep, and arousal. What am I?
Respuesta
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Acetylcholine
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Dopamine
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Norepinephrine
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Serotonin
Pregunta 17
Pregunta
The neurotransmitter acetylcholine (ACh) is most likely to be found ...
Respuesta
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At the junction between sensory neurons and muscle fibers
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At the junction between motor neurons and muscle fibers
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At junctions between interneurons
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In all of these locations
Pregunta 18
Pregunta
The gland that regulates body growth is the...
Respuesta
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Adrenal
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Thyroid
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Hypothalamus
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Pituitary
Pregunta 19
Pregunta
Jessica experienced difficulty keeping her balance after receiving a blow to the back of her head. It is likely that she injured her...
Respuesta
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Medulla
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Thalamus
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Hypothalamus
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Cerebellum
Pregunta 20
Pregunta
Moruzzi and Magoun caused a cat to lapse into a coma by severing neural connections between the cortex and the...
Respuesta
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Reticular formation
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Hypothalamus
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Thalamus
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Cerebellum