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13 Cards in this Set
- Front
- Back
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What is the Node of Ranvier?
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a gap in the myelin sheath
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What are the 3 important functions of the myelin sheath?
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- insulator
- protects axon from damage - speeds up the movement of the nerve impulse along the axon |
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What is the outer most coil of the schwann cell called?
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Neurilemma
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What are the 3 types of neurons?
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- Sensory
- Motor - Interneuron |
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What are the types of neuron structures?
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- Multipolar neuron
- Bipolar neuron - Unipolar neurons |
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What is the difference between a Neuron, Nerve fibre and a Nerve?
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Neuron: nerve cell
Nerve fibre: extension of cytoplasm of a nerve cell (aka axon) Nerve: bundle of nerve fibres held together by connective tissue |
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What is a synapse?
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The junction between one neuron and the other
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What is the gap called when an axon meets a skeletal muscle?
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Neuromuscular junction
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Describe the peripheral nervous system.
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The nerves that connect the CNS with receptors, muscles and glands
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What is the difference between a Neuron, Nerve fibre and a Nerve?
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Neuron: nerve cell
Nerve fibre: extension of cytoplasm of a nerve cell (aka axon) Nerve: bundle of nerve fibres held together by connective tissue |
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What is a synapse?
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The junction between one neuron and the other
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What is the gap called when an axon meets a skeletal muscle?
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Neuromuscular junction
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Describe the peripheral nervous system.
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The nerves that connect the CNS with receptors, muscles and glands
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