<span>The sequence is as follows:
c, d, a, b, f, g, e
The impulse starts at the SA node that has its own contraction rhythm (but can be faster or slower depending on other impulses or hormones). That impulse travels then through the atria and is slowed down by the atrioventricular septum except for a region in the right atrium called AV node where the impulse has continuity. The impulse travels then to the ventricles through the AV bundle. The impulse continues through bundle branches to other fibers: Purkinje fibers. These Purkinje fibers cause then a contraction that goes from the apex of the heart and rapidly through the ventricles.</span>
Answer:
year, age, epoch, period, era, eon
Explanation:
During period of time of heavy lifting or extreme muscleman air , sinew do not get oxygen quickly enough to provide vitality . In these face , the body must convert a substance called pyruvate into a substance called lactate, reports Scientific American language . Too much reliance on lactate can confidential information to high levels of acidulousness in muscles and disruption of metabolites. When muscles have adequate oxygen, a person performs aerobic physical exercise for extended periods without trouble. Production of lactate only generates enough energy for one to three moment of anaerobic activity.
During a study in the U.S., it was noted that people are more violent during summer months and December. It is also disclosed that climate change could lead to more violence, as an example, during El Ni<span>ño, civil conflict increases. The reason is that anger increases the body temperature by increasing blood pressure and altering the distribution of blood in our body. Higher temperature means an increase in aggression and the heat triggers the feelings of anger. </span>
