Laboratory Instructions in Introductory Physiology
Laboratory Instructions in Introductory Physiology
University of California (1868-1952)
The book Laboratory Instructions in Introductory Physiology was written by author University of California (1868-1952) Here you can read free online of Laboratory Instructions in Introductory Physiology book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Laboratory Instructions in Introductory Physiology a good or bad book?
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Draw. 2. Locomotion — Study the creeping movements. Observe the alternating waves of contraction of the circular and longitudinal muscles. Note the- use of the setae. How does the worm creep backwards! 3. Cut the ventral nerve cord of a worm near the middle of its length, injuring the body wall as little as possible. Note carefully the effect, if any. on the coordination in locomotion. Does the brain determine the coordination! 4. Mechanics of Coordination, Friedlander's experiment — Cut an ear...th- worm into two parts, and with a needle sew them together again. How is coordination between the anterior and posterior pieces now effected! 5. Spontaeity — Anesthetize an earthworm by placing it for a few min- utes in chloroform water. (Shake up five drops of chloroform in 40 c.c. of water.) Eemove the supracesophaegal ganglion and place the worm between sheets of moist filter paper to recover from the chloroform. Keep the worm carefully for some days and study its reactions. In the meantime observe the movements and reactions of decapitated worms.
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