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Chapter 9: Nerve Tissue & the Nervous System

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Which of the following is characteristic of the chromatophilic material called Nissl substance in neural tissue?

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a. Found throughout neurons

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b. Site of mRNA translation for proteins of the axolemma

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c. Most abundant in unipolar neurons

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d. Becomes more abundant as an individual gets older

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e. An example of intermediate filament proteins

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Which of the following events occurs immediately after an action potential reaches a synapse at an axon terminal?

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a. Vesicle fusion with the presynaptic terminal membrane

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b. Calcium ion influx at the presynaptic terminal

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c. Neurotransmitter binding to receptors on the postsynaptic membrane

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d. Neurotransmitter release into the synaptic cleft

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e. Binding of the neurotransmitter at the presynaptic terminal

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A report from a hospital pathology laboratory indicates that a microscope slide with a small specimen of neural tissue contains “numerous GFAP-positive” cells. What is the most likely source of this specimen?

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a. A region of white matter

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b. A sensory ganglion

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c. An autonomic ganglion

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d. A region of gray matter

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e. Pia mater

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In the choroid plexus water from capillaries is transported directly into the cerebrospinal fluid by what structure(s)?

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a. Ependyma

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b. Astrocytes

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c. Cells of the arachnoid mater

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d. Lining of the central canal

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e. Microglial cells

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What term applies to collections of neuronal cell bodies (somata) in the central nervous system?

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a. Ganglia

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b. Neuroglia

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c. Nodes

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d. White matter

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e. Nuclei

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Which structure contains trabeculae around which cerebrospinal fluid (CSF) flows?

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a. Arachnoid mater

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b. Ependyma

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c. Dura mater

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