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24 Cards in this Set
- Front
- Back
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Physiology
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The study of the NORMAL functioning of a living organism and its component parts, including all chemical and physiocal processes
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Teleological Approach
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Function of physiological system. The why?
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Mechanistic Approach
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physiological processes or mechanism. The how?
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Homeostasis
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the organisms that survive in these challenging habits cope with external variability by keeping their internal enviorment relatively stable.
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pathological
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the body fails to maintain homeostasis
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toxic control
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an agent may exist which has a moderate activity which can be variaed up and down
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antagonistic control
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when factor is known which can it is reasonable to look for a factor or factors having an opposing effect
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reflex control pathways
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responds to changes that are wide spread throughout the body or systemic in nature
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acclimation
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the porcess as a set of enviroment conditions when the set points are changed
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feedback loop
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the response "feeds back" to influence tha input portion of the pathwya
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cadian rhythem
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daily biological rhythm
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axon hillock
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single axon that orginates from a specialized region of the cell body
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collaterals
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branch sparsely along length
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axoplamic flow
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movement from cell body to the axon terminal
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gial cells
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communicate with and provide important bochemicals support neurons
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what are the two kinds of gial cells and where are they
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schwann cells-in PNS
oligodendrocytes-in CNS |
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nodes of Ranvier
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tiny gaps in between the schwann cells on the axons
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Satellie Cells
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non myelinating schwann cells, support capsules around nerve cell bodies in the ganglia
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ganglion
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a custer of nerve cell bodies branch outside of CNS
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astorcytes
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highley branched glail cells that are about 1/2 cells in brain
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microglia
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specialiezed immune cells that reside permanetly in the CNS
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Ependymal Cells
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separates the fluid compartments of the CNS
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neutral stem cells
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immature cells that can differentiare into new rensamd gial cells
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mylination
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insulation surrounding axons
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