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10 Cards in this Set
- Front
- Back
What are the 2 systems in the nervous system and what are they?
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-Central: Brain and spinal cord
-Peripheral:Afferent and Efferent division |
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What is the Afferent and Efferent division?
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-Afferent: Sensory information that flows to the brain
-Efferent:Motor comands from the brain to muscle or gland |
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What are the 2 systems of the efferent division and what do they do?
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-Somatic: Skeletal muscle
-Autonomic: divides into parasympathetic and sympathetic. -effects organs, glands, and smooth muscle |
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What is parasympathetic and sympathetic do?
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-Parasympathetic: rest and digest
-Sympathetic: fight or flight |
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Whats neural tissue made up of and what do they do?
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-Neurons: (nerves) responsible for transmitting information
-Neurogilia (gilial0-supporting cells |
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What is the Nissl bodies, axon hillock, perikaryon, dendries and axon in a neuron?
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-Nissl bodies: elaborate type of rough ER involving metabolism
-Axon Hillock: transition area between soma and axon -Perikaryon: region around the nucleus -Dendrites: stimulated by environmental changes or other activies of other cells -axon: conducts nerve impulses (action potentials) toward synaptic terminals |
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What are the Glial cells of the CNS?
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-Astrocytes
-Oligodendrocyets -Microglia -Ependymal Cells |
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What does Astrocytes do and what kind of cell is it?
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-a Glial cell
-Maintain blood brain barrier (BBB) -Create framework for CNS -perform repairs in damages of neural tissue -guiding neron development -controlling the interstitial environment |
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What does oligodendrocytes do and what kind of cell is it?
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-a Glial Cell
-ties axons together -create myelin in the CNS |
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What is myelin, white matter and grey matter?
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Myelin: improves performance (conduction speed)
-White matter: contains myelin -Grey matter: have unmyelinated axons |