Abstract
1. The freshly excised uterus masculinus of the rabbit exhibits spontaneous rhythmic contractions when suspended in oxygenated Ringer's and Tyrode's solutions at body temperature. Tyrode's solution is, however, the more favorable medium.
2. The uterus masculinus of the rabbit exhibits increased tone when in contact with epinephrine, pilocarpine, arecoline, nicotine, ergot, hydrastis, pituitary extract, and barium chloride.
3. The increased tone after epinephrine, nicotine, pituitary extract, and barium chloride is accompanied by a decrease in amplitude.
4. Atropine antagonizes the effects of pilocarpine, nicotine, and arecoline on the uterus masculinus.
5. The uterus masculinus reacts to drugs in general essentially like the uterus of the female.
6. From the reactions to nicotine, pilocarpine, and atropine it would be concluded that the uterus masculinus of the rabbit posesses a motor parasympathetic as well as a motor sympathetic nervous apparatus.
Footnotes
- Received November 26, 1916.
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