Ventricular pacemaker cells discharge at a slower rate than the SA or AV node. While the SA node typically initiates a rate of 70 beats per minute (BPM), the atrioventricular node (AV node) is usually only capable of generating a rhythm at 40-60 BPM or less. Ventricular contraction rate is thus reduced by 15-40 beats per minute.
Littleton, CO Population and Races. As of 2010-2014, the total population of Littleton is 43,710, which is 8.35% more than it was in 2000. The population growth rate is much lower than the state average rate of 20.84% and is lower than the national average rate of 11.61%.
The next year, on December 4, 1891, Hazleton was chartered as a city. tury, Hazleton was a boomtown, its population increasing from 14,230 in 1900 to 25,452 in 1910. population would peak at 38,009 in the 1940 census. which fueled this tremendous growth, the cityâs population also steadily decreased. live in Hazleton.