Where do i go to on my computer to write a letter and then print it out. Sorry but i'm only starting recently to understand some things about my computer so i'm asking.here do i go to on my computer to write a letter and then print it out. Sorry but i'm only starting recently to understand some things about my computer so i'm asking.
A scientist by the name of Francis Arthur Bainbridge reported this reflex in 1915 when he was experimenting on dogs. Bainbridge found that infusing blood or saline into the animal increased heart rate. This phenomenon occurred even if arterial blood pressure did not increase.
For example, a 10- to 15-minute brisk walk typically elevates the heart rate to 110 to 120 beats per minute. Also, the sinus node increases the heart rate when the body is stressed because of illness. In all of these circumstances, the heart rate increase is a normal response.