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Cards In This Set
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Which of the following are the TWO major anatomical division?
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CNS (Central Nervous System) and PNS (Peripheral Nervous System)
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Which TWO of the following are components of the central nervous system?
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Spinal Cord and Brain
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Which of the following are common effector organs stimulated by the nervous system?
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Muscles and glands
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Anatomically, the spinal cord can be divided into which number of spinal segments, each of which gives rise to a pair of spinal nerves?
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31
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Which FOUR of the structures comprise the major regions of the brain?
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Cerebellum, Cerebrum, Brainstem, and Diencephalon
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Which of the following are regulated by the enteric nervous system?
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Glandular secretions into the gut and peristalsis
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What is the anatomical term for the involuntary nervous system that is composed of the sympathetic and parasympathetic nervous system?
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Autonomic nervous system
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Which ONE of the following is NOT a part of the peripheral nervous system?
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Spinal cord
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What is the term for the single process that arises from the hillok of the cell body of a neuron and terminates at a synapse?
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Axon
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Bipolor neurons are most likely to be found in which TWO of the following?
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Retina of the eye and Olfactory bulbs
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Which ONE of the following types of Neuroglial cells are widespread throughout the peripheral nervous system?
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Schwann Cells
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The process myelination is carried out by which of the following types of glial cells?
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Schwann cells and oligodendrocytes
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Which ONE of the following is a collective term for tissue composed of neuronal cell bodies, dendrites, axon terminals, neuroglia, and unmyelinated axons?
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Gray Matter
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What is the term for the type of action potentials conduction that seems to "jump" between the nodes of Ranvier?
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Saltatory Conduction
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Arrange the following stages of the generation of an action potential in the correct order, starting from the state of the neuron at rest.
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1. Graded potentials depolarize plasma membrane to threshold (-55mV)
2. Voltage-Gated sodium channels open and the membrane is further depolarized (+30mV) 3. Voltage-gated sodium channels close and voltage-gated potassium channels open 4. Potassium ions flood out of the neuron and the membrane potential drops below the resting membrane potential (-90mV) 5. Voltage-gated potassium channels close and the normal resting membrane potential is re-established. |
