Top Posters
Since Sunday
5
o
5
4
m
4
b
4
x
4
a
4
l
4
t
4
S
4
m
3
s
3
SlideshowReport

Action Potential in a Ventricular Fiber

Description
Influences on the Conduction System

The autorhythmic fibers in the SA node are the natural pacemaker of the heart because they initiate action potentials most often
Signals from the nervous system and  hormones (like epinephrine) can modify the heart rate and force of contraction but they do not set the fundamental rhythm

An action potential in a ventricular contractile fiber is characterized by a rapid depolarization, plateau, and repolarization
Related Images
Add Comment
Explore
Post your homework questions and get free online help from our incredible volunteers
  1198 People Browsing
Your Opinion
What's your favorite funny biology word?
Votes: 156

Previous poll results: Who's your favorite biologist?