. Directions for laboratory work in physiology. Physiology. 38 EXPERT MEXT VII. spond to such irritation gradually becomes less, and after 20 or 30 minutes it ceases altogether, although the left leg will respond as before. When all the body but the left leg has become com- pletely paralyzed, open the abdominal cavity and remove the vicera, care being taken not to injure the nerves behind them, (see Fig. 10, \'entral Mew). Cut the body in two, leaving the last two vertebrae connected with the legs. Split Vkntral View Doksal Vihw. Fig. 10. Dissection ofriglit leg of frog. A, sciatic plexus; B,
. Directions for laboratory work in physiology. Physiology. 38 EXPERT MEXT VII. spond to such irritation gradually becomes less, and after 20 or 30 minutes it ceases altogether, although the left leg will respond as before. When all the body but the left leg has become com- pletely paralyzed, open the abdominal cavity and remove the vicera, care being taken not to injure the nerves behind them, (see Fig. 10, \'entral Mew). Cut the body in two, leaving the last two vertebrae connected with the legs. Split Vkntral View Doksal Vihw. Fig. 10. Dissection ofriglit leg of frog. A, sciatic plexus; B, cniralis; C, sar- torius; D. gracilis magnus; E, gastrocnemius; K. glutaeus niagnus; G, sciatic nerve; H, llio-fibularis; I. semimembranosus. these vertebrae lengthwise, and holding the fragments with forceps, dissect out the sciatic plexuses supplying the hind legs. Do not take hold of nerves with forceps, and avoid stretching them. Fasten pair of electrodes to the posts of secondary coil. Stimulate these plexuses in turn with the letanizing current. What is the result? Now apply the stimulus directly to the muscles of the legs. What is the result ?. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lombard, Warren P. (Warren Plimpton), 1855-1939. Ann Arbor, G. Wahr
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