Laboratory Directions for Course One in Physiology, Department of Physiology And Pharmacology, Cornell University
The book Laboratory Directions for Course One in Physiology, Department of Physiology And Pharmacology, Cornell University was written by author Kingsbury, B. F. (Benjamin Freeman), 1872-1946 Here you can read free online of Laboratory Directions for Course One in Physiology, Department of Physiology And Pharmacology, Cornell University book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Laboratory Directions for Course One in Physiology, Department of Physiology And Pharmacology, Cornell University a good or bad book?
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There is a marked deflection of the needle. Note the deflection and which electrode it is that is in contact with the cut surface. Place both electrodes upon the cut surface. Result. Gradually move one electrode toward the edge of the cut surface and onto the natural surface. Result. Explanation of results. Fig. 16. Fig. 17. Muscle tissue, uninjured and at rest, seems to show no differ- ence in electrical condition. The explanation of the demarcation ■current will be discussed elsewhere. Nerves... show also in the same way a current of injury which you can demonstrate for yourselves in the carefully prepared sciatic nerve. 53 The Action Current. When nerve or muscle is active it undergoes an electrical change forming a difference of potential negative at the active part as compared with the resting part through a galvanometer. When thus connected up so as to permit it, a flow of current takes place, from the active part through the tissue to the resting part, and through the galvanometer back to the injured part.
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