A: One-way conduction can only be conducted from the cell body to the periphery.
B: The fibers in the nerve trunk do not interfere with each other.
C: As long as the structure is complete, it can conduct excitation normally.
D: It is not affected by the change of internal environmental factors.
举一反三
- Through which of the following structure does nerve fibers conduct nerve impulses? A: Myelin sheath B: Axolemma C: Neurofilament D: Synaptic vesicle
- Insulativity is a characteristic of excitation conduction on nerve fiber.
- Insulativity is a characteristic of excitation conduction on nerve fiber. A: 正确 B: 错误
- Oligodendrocytes make myelin, a fatty substance that insulates nerve axons and speeds the conduction of impulses along nerve fibers.
- Exciting conduction velocity of nerve fibers () A: is connected with the square of the diameter B: is connected with the diameter C: has nothing to do with the thickness of myelin sheath D: is unaffected by temperature E: is associated with the intensity of stimulation
内容
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The reason for rapid conduction of impulses along myelinated nerve fibers is that they have( ) A: long axons B: thick axons C: many synaptic vesicles in the axons D: clefts of Schmidt and Lantermann E: nodes of Ranvie
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The following belong to peripheral nervous system ( ) A: Conducts impulses from receptors to the CNS B: Informs the CNS of the state of the body interior and exterior C: Sensory nerve fibers can be somatic or visceral D: Conducts impulses from CNS to effectors
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Which cell forms the myelin sheath of myelinated nerve fibers in the peripheral nervous system? A: Astrocytes B: Microglia C: Oligodendrocytes D: Schwann cells
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______ cells create myelin, which surrounds nerve fibers of the peripheral nervous system.
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In central nerve fibers, the sheath cell is() A: Astrocytes B: Oligodendrocytes C: Satellite cells D: Ependymal cells E: Schwann cells