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The distribution of neurons within the somatosensory cortex of humans is uneven.Proportionately, larger areas of this region are dedicated to the:


A) back, trunk, and thighs
B) face, lips, and fingers
C) eyes, ears, mouth, and nose
D) neck, shoulders, and chest

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In the brain, the ____________________ lobe is primarily involved in the sensations of touch, temperature, and pain.

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Researchers have found that ____________________ is associated with an underproduction of the neurotransmitter acetylcholine.

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What are the behaviors controlled by the thalamus and hypothalamus? Where are these structures located in the brain?

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The thalamus and hypothalamus are two di...

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The branchlike parts of the cell, which are called ____________________, are the primary information receivers.

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The key functions associated with the medulla and the pons are:


A) planning and coordination of complex motor skills
B) control of motivation and emotional responses
C) speech production and speech comprehension
D) basic life support functions such as heart rate, breathing, and blood pressure

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Which of the following is true of dendrites?


A) they are the long tail-like part of a neuron that acts as a transmitter
B) they form the cell body of the neuron and process information
C) they extend outward from a neuron and receive information from other neurons
D) they contain chemicals important in neural transmission

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All the excitatory and inhibitory potentials with a neuron are combined in the:


A) myelin sheath
B) terminal buttons
C) axon hillock
D) postsynaptic membrane

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Tera recently suffered a head injury when she was involved in a car accident.She used to be able to play the piano flawlessly, but now she is having difficulty coordinating the finger movements required in complex musical pieces.It is likely that during the car accident, Tera damaged her:


A) reticular formation
B) amygdala
C) cerebellum
D) temporal lobe

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The part of the neuron that is the metabolic center and stores genetic material is the:


A) dendrite
B) soma
C) axon
D) terminal button

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Dr.Langlois has just discovered a new drug named XM7 that produces side effects such as partial paralysis within the body.Based on this information, it appears that Dr.Langlois's new drug is acting as:


A) an agonist for acetylcholine
B) an antagonist to dopamine
C) an antagonist to acetylcholine
D) an agonist for endorphins

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The main components of the nervous system are:


A) synapses
B) dendrites
C) axons
D) neurons

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The key function associated with the substantia nigra is:


A) control of basic life support functions (such as heart rate and breathing)
B) acting as an important relay station for visual and auditory information
C) the release of dopamine into the brain
D) control of motivation and emotional responses

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In the brain, the ____________________ system is made up of several interrelated structures, including the amygdala and the hippocampus.

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The somatic nervous system is important for survival because:


A) it performs basic internal housekeeping functions that keep us alive
B) it helps us to interact with the environment
C) it helps us prepare for, and recover from, emergencies
D) it controls the release of hormones necessary for growth

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The field of ____________________ is involved in studying the connections between brain and behavior.

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Individuals with Parkinson's disease have abnormal levels of which of the following in their brains?


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

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A resting potential is:


A) an electrical signal that travels along the axon of a neuron
B) the small gap that exists between adjacent neurons
C) an electrical signal that travels along the dendrites of a neuron
D) the tiny electrical charge that exists when a neuron is neither receiving nor sending information

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Alzheimer's disease involves serious memory disorders.This suggests Alzheimer's disease affects:


A) the medulla and pons
B) the tectum
C) the cerebellum
D) the hippocampus

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The typical speed of an action potential is:


A) dependent on the intensity of the excitatory signals
B) between 2 and 200 miles per hour
C) approximately the speed of light (186,000 miles/second)
D) approximately the speed of sound (740 miles/hour)

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