Anatomy
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| Small distinct regions of gray matter in the CNS are called: | Nuclei
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| The nervous system can be divided | According to its structure, according to directions of the information, by control of effectors ( in all of the above ways)
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| Which of the following is the deepest connective tissue layer of a nerve? | Endoneurium
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| Nerves that contain mostly afferent fibers are called _____nerves. | sensory
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| Neurons in the CNS have less chance of regenerating for all of the following reasons except | microglia lay down scar tissue
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| The nervous system is organized to do which of the following? | Detect changes in the external environment, detect changes in the internal environment, evaluate changes in the environment ( all of the above are true)
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| Dendrites conduct impulses ____cell bodies. | toward
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| Which is not true of the myelin sheath? | It covers cell bodies in the brain and spinal cord
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| The largest and most numerous types of neuroglia are the: | astrocytes
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| The white matter of the nervous system is made up of: | Myelinated fibers
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| In the human nervous system: | there are almost equal numbers of glia cells and neurons
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| A neuron that has only one axon, but several dendrites is classified as a ________neuron. | multipolar
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| Astrocytes attach to | Neurons and Blood Vessels
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| Which of the following compounds cannot cross the blood-brain barrier? | Dopamine
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| The afferent pathways of the autonomic nervous system: | Carry feedback information to integrating centers in the brain
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| A neuron that transmits a nerve impulse toward the central nervous system is called a(n): | sensory neuron
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| Schwann cells have a function in the PNS that is similar to that of which cells in the CNS? | Oligodendrocytes
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| Fascicles are held together by a connective tissue layer called the: | Perineurium
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| Which is true of a reflex arc? | It always consists of an afferent neuron and an efferent neuron
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| Interneurons reside in the | CNS only
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| The autonomic nervous system does not stimulate: | Skeletal muscles
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| Most unipolar neurons are usually: | Sensory neurons
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| Which of the following is not a function of the central nervous system (CNS)? | Integrating sensory information, evaluating the information, initiating outgoing response
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| The efferent pathways of the autonomic nervous system consist of the ___________ nervous systems. | Sympathetic and parasympathetic
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| Along a neuron, the correct pathway for impulse conduction is: | Dendrite, cell body and axon
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| Multipolar neurons have: | multiple dendrites and one axon
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| Regeneration of nerve fibers will take place only if the cell body is intact and the fibers have: | a neurilemma
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| One of the components of the blood-brain barrier is: | astrocytes
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| Gray matter in the brain and spinal cord consists primarily of: | cell body
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| The part of the nervous system that transmits impulses from the CNS to the skeletal muscle is the: | somatic nervous system
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