Anatomy and Physiology Study Set 1

Biology

Quiz 9 :

Nervous System

Quiz 9 :

Nervous System

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Astrocytes provide structural support in the nervous system.
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True False
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Answer:

False

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Interneurons are specialized to carry impulses from peripheral receptors into the brain or spinal cord.
Free
True False
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Answer:

False

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Nodes of Ranvier connect adjacent neurons.
Free
True False
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Answer:

True

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A synapse is the functional connection between two neurons.
True False
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A nerve is a single neuron.
True False
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The subarachnoid space contains cerebrospinal fluid.
True False
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The gray commissure of the spinal cord surrounds the central canal.
True False
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If fibers in an ascending tract of the spinal cord are cut, the affected person will have a loss of motor functions below the injury.
True False
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Cell bodies of motor neurons are located in the anterior horns of the spinal cord.
True False
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The arbor vitae is part ofthe cerebrum.
True False
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Brain damage to the temporal lobe, where recent memory is processed, can result in the inability to form long-term memory.
True False
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Sympathetic tone is defined as ongoing stimulation of smooth muscles in the walls of blood vessels, which results in partial constriction.
True False
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An action potential is an all-or-none response.
True False
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A neuron may release more than one type of neurotransmitter.
True False
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Afferent neurons bring sensory information into the central nervous system.
True False
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Efferent neurons carry impulses from the central nervous system to effectors.
True False
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Most nerves of the body are mixed nerves.
True False
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Sensory nerves carry information to effectors.
True False
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The butterfly shape seen in a cross section of the spinal cord is composed of white matter.
True False
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Cranial nerves connect the brain only to head and neck regions; spinal nerves connect to all regions below the neck.
True False
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