Basic Neurology terms – Flashcards
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Bundle
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a group of fibers
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column
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a pillar of fibers
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Fasciculus
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a small bundle
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Lemniscus
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a ribbon of fibers
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Tract
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a large group of nerve fibers
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What are two major types of cells in the nervous system?
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Glial cells and Neurons
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What are cells composed of?
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Soma, cytoskeleton, nucleas (DNA), Nucleolus (RNA), ribosomes, golgi apparatus, mitochondria
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What are the four main components of a Neuron?
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Soma, Nucleas, Dendrites, Axon
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What is contained in the nucleas?
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contains DNA
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What are the dendrites responsible for?
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carrying info to the cell
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What do the axons do?
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Carry info away from the cell
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What are the axons wrapped in?
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Myelin. A white lipid layer that surrounds the axon and gives off the white color of white matter
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What are the four primary Glial cells in the Central Nervous System?
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Astrocytes, Oligodendrocytes, Schwann cells, microglia/macrophages,
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What are the two types of CNS tissue?
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White matter: comprised of axons, gray matter: comprised of cell bodies
