Response in the Living and Non-Living

115. INCREASE OF RESPONSE AFTER CONTINUOUS STIMULATION IN 186 NERVE AND METAL

116. MODIFIED ABNORMAL RESPONSE IN NERVE AND METAL 187 TRANSFORMED INTO NORMAL RESPONSE AFTER CONTINUOUS STIMULATION

117. ACTION OF THE SAME 'POISON' IN THE ABOLITION OF 189 RESPONSE IN NERVE, PLANT, AND METAL

RESPONSE

IN THE

LIVING AND NON-LIVING

CHAPTER I

THE MECHANICAL RESPONSE OF LIVING SUBSTANCES

Mechanical response--Different kinds of stimuli--Myograph--Characteristics of response-curve: period, amplitude, form--Modification of response-curves.

One of the most striking effects of external disturbance on certain types of living substance is a visible change of form. Thus, a piece of muscle when pinched contracts. The external disturbance which produced this change is called the stimulus. The body which is thus capable of responding is said to be irritable or excitable. A stimulus thus pr