Licence: Public Domain Mark
Credit: An elementary system of physiology / By John Bostock. Source: Wellcome Collection.
Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.
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![Page JBorelli's account of muscular action » .'.T. V .T.' * 1'. 184? ■ Illustration of the effect of muscular motion 185 ■ Loss of power from the nature of the lever 186 i Power sacrificed to convenience. ......<........ 186 , i Bncrease of velocity' 187 •]-3Lo^s .of power from ohlique position of the muscles 188 ^; Saving of the quantity of contraction 188 Ex;tent of action increased 188 Loss of power from the composition of forces 189 From the oblique insertion of the tendons IPO .From the extremities acting against each other ipO rjSaving of muscular power 191 Saving of muscular contraction 191 .Contractility a specific property 192 . Hemarks on animal mechanism 194^ Force of muscular contraction 195 Its velocity; its extent 196 §6. Hypotheses of muscular coniracthn ''197 > Nature of the inquiry 197 Cause of contraction ; not mechanical , 198 Various unfounded hypotheses; Borelli's 198 Stuart's; chemical hypothesis; electrical .. .. 199 Keill's hypothesis 200 f\ iProchaska's.^^ ^03 Hales's observations; Blane's hypothesis 204 General remarks S05 iCause of contractility. , 206 ' Caloric; electricity; oxygen. 208 Chemical composition; Humboldt's experiments ^10 Contractility connected with the chemical condition of the muscle^ and the coagulability of the fibrin . ,,^^^12 General remarks on the chemical hypothesis 214 • Contractility supposed to depend on structure; on attraction 215 General conclusion.. ' 218 CHAP. IV. Of the nervous system, .. 219 Remarks on the terms employed 219 1. Descriplion qf'Uic nervous system 221 Description of the brain; membranes, ventricles,., 221](https://iiif.wellcomecollection.org/image/b21443968_0001_0021.jp2/full/800%2C/0/default.jpg)
