Abstract
1. A method is described which permits the continuous recording of the heart rate on an ordinary smoked paper or ink kymograph.
2. Epinephrine (40 micrograms) and carbaminoyl choline (1-10 micrograms) decrease the heart rate. The depression of the heart rate due to vagal stimulation lasts considerably longer than the concomitant changes in the blood pressure.
3. In the atropinized cat, the increase in the heart rate following epinephrine is of the same duration as the increase in blood pressure.
Footnotes
- Received August 11, 1942.
JPET articles become freely available 12 months after publication, and remain freely available for 5 years.Non-open access articles that fall outside this five year window are available only to institutional subscribers and current ASPET members, or through the article purchase feature at the bottom of the page.
|
Log in using your username and password
Purchase access
You may purchase access to this article. This will require you to create an account if you don't already have one.