. A text-book of human physiology . romclinical observations (3, b). The resulting degenerations can also be usedin the same way as corresponding observations on man (3, a). Finally, afterpartial section of the cord, one can tell by stimulation of higher parts—e. g.,the cerebral cortex, whether certain efferent pathways have been interruptedor not. 5. The Electrical Method, which has been worked out especially byGotch and Horsley. This is based upon the fact that action currents occurin the central nervous system as well as in peripheral nerve trunks. Attentionis paid to the strength of the ac
. A text-book of human physiology . romclinical observations (3, b). The resulting degenerations can also be usedin the same way as corresponding observations on man (3, a). Finally, afterpartial section of the cord, one can tell by stimulation of higher parts—e. g.,the cerebral cortex, whether certain efferent pathways have been interruptedor not. 5. The Electrical Method, which has been worked out especially byGotch and Horsley. This is based upon the fact that action currents occurin the central nervous system as well as in peripheral nerve trunks. Attentionis paid to the strength of the action currents produced by stimulation ofdifferent parts after making various partial sections (cf. Fig. 263). 6. Gud-dens Method (cf. page 568). C. ANATOMICAL DATA CONCERNING THE CONDUCTING PATHWAYS OF THE CORD We use the term afferent pathtvays here and in what follows to designateall those tracts which convey impulses from lower to higher nerve centers,and the term efferent pathtvays to designate all those which convey impulses.
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