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Efferent nerves transmit nerve impulses to muscles and ________ in the body.

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Which of the following structures of the spinal cord carries sensory information to the brain?


A) Ascending track
B) Descending track
C) Central canal
D) Reflex
E) Neuroglia

F) A) and D)
G) None of the above

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When the sciatic nerve is damaged by excessive pressure on the nerve from prolonged sitting or lying down, the patient has ________.

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Which type of test can be used to diagnose Alzheimer's and Parkinson's diseases?


A) MRI
B) PET scan
C) Cerebral angiography
D) Electroencephalography
E) Lumbar puncture

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

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Which of the following are the membranes that protect the brain and spinal cord?


A) Meninges
B) Dermatomes
C) Neurotransmitters
D) Interneurons
E) Ganglia

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

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Also known as Lou Gehrig's disease, ____ is a degenerative disease of the spinal cord and brain.


A) Alzheimer's disease
B) amyotrophic lateral sclerosis
C) multiple sclerosis
D) epilepsy
E) meningitis

F) A) and D)
G) B) and D)

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The ________ root of spinal nerves contains axons of motor neurons only.

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Which of the following has membranes that contain large amounts of myelin that insulates the axons and allows them to send nerve impulses quickly?


A) Cell body
B) Axon
C) Dendrites
D) Schwann cells
E) Nerve fibers

F) A) and B)
G) A) and D)

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Which of the following describes the sympathetic division of the autonomic nervous system?


A) It secretes norepinephrine.
B) It slows the heart and respiratory rates.
C) It releases acetylcholine.
D) It activates the digestive glands.
E) It prepares the body for resting.

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

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The ____ causes muscles to contract or relax and glands to secrete products.


A) synaptic knob
B) axon diameter
C) neurotransmitter
D) interneuron
E) cell body

F) C) and D)
G) None of the above

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Chemicals called ________ are released by the synaptic knob to allow impulse transmission to continue to the postsynaptic structures, which consist of the dendrites, cell bodies, and axons of other neurons.

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The ________, shown at letter C, serves as a relay station for sensory information.

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  -Letter B indicates the ________, a bundle of nerve fibers that connects the two hemispheres of the cerebrum. -Letter B indicates the ________, a bundle of nerve fibers that connects the two hemispheres of the cerebrum.

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Which type of headache often has an aura that may appear as jagged lines or flashing lights and the detection of strange odors?


A) Migraine
B) Cluster
C) Tension
D) Circular
E) Neural

F) A) and E)
G) B) and E)

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The ________ acts as a go-between or interpreter between the afferent and efferent nerves.

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A thick bundle of nerve fibers called the ____ connects the two cerebral hemispheres.


A) cerebrum
B) corpus callosum
C) gyri
D) longitudinal fissure
E) sulci

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

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When the outside of a neuron's membrane becomes less polar, the neuron has ________.

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Interconnected cavities within the brain that are filled with cerebrospinal fluid (CSF) are called __________.

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Extending from the cell body of a neuron are axons and dendrites, which are two types of nerve ________.

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At which vertebral level does the spinal cord end?


A) First lumbar vertebra
B) First sacral vertebra
C) First thoracic vertebra
D) Twelfth thoracic vertebra
E) Coccyx

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

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