Paresis of the sympathetic centers from over excitation by high solar heat, long continued and suddenly withdrawn, etc., so-called malaria; its etiology, pathogenesis, pathology and treatment

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1879 Excerpt: ...conditions, primary and secondary, resulting from paresis of the sympathetic centers, the reader is referred to the article on "Symptoms and Pathology." (See also Carpenter's "Principles of Physiology," 464 to 468.) CHAPTER XVI. EXCITATION PARESIS. Excitation of the nervous system, (1) by excessive heat, applied from without, (2) by too great retention of the heat generated normally in the body, and (3) by too rapid loss of animal heat by radiation and vaporization and convection, produces paresis or abnormal irritability of the sympathetic centers. For illustrations we have (1) sunstroke (insolation), "ardent" fevers, nausea and vomiting, (2) syncope, neuralgia, headache, loss of appetite and the various derangements which are usually placed in the list, said to be due to living in overheated rooms, although such overheated rooms have temperatures scarcely as high as 80 F., and (3) chill, drowsiness, catarrhs, pneumonias, etc. (See Hanfield Jones, Clinical Obs., p. 33. Carpenter's Principles of Phys., 603-677.)1 Anaemia, hydraemia, chlorosis, inanition, etc., greatr ly favor the production of heat-paresis, etc., inducing this condition far more readily than when the system is in a healthy state. Excitation of the nervous sys 1. The fact that the heat generating power is not equally energetic.in all indrvidufjs, nor in the same individual at all pericot.the year, nor of a single'day. has so important a Bearing on the question under consideration that it will be weU no/to-'Ios sigbf o"f it. (Ibid 075-6. Dalton 304.) tern by heat is modified in a very interesting manner, and to a great degree, by the amount of moisture, the degree of temperature and the quietness or mobility of the atmosphere. These facts are more strikingly...