ISSN:
1573-8221
Keywords:
hypoparathyroidism
;
calcium
;
mono- and polysynaptic reflex
;
posttetanic potentiation
;
efferent output
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Abstract Experiments on parathyroidectomized cats with motor disorders of different degrees of severity showed disturbance of spinal reflex activity, in the form of activation of motoneurons and the interneuron system, weakening of posttetanic potentiation, and facilitation of conduction in the reflex arc. If severe tetany was present monosynaptic responses were reduced or, in some cases, abolished completely and polysynaptic reflex discharges were potentiated. After intravenous injection of calcium chloride into the experimental animals a tendency was found for recordable reflexes to return. It is concluded that disturbance of the functional state of the spinal segmental apparatus was largely due to hypocalcemia and it may be one of the causes of tetany in hypoparathyroidism.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00801807
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