The refractory period in cardiac muscle
This is an excerpt from the paper...
The refractory period in cardiac muscle is the period after the ventricular contraction during which both the atria and the ventricles are at rest. It is the time needed for repolarization of the muscle cell membranes before they can be stimulated again by an impulse from either the sinoatrial node or the atrioventricular node. This period lasts for 0.4 seconds (Applegate, 2000, 251). The repolarization time in cardiac muscle is roughly the same length of time (250 msec) as the time for a contraction and so contractions cannot overlap (Kimball, 2004). The refractory period in skeletal muscle is only 1 - 2 msec, which is much shorter than the contraction/relaxation cycle of skeletal muscle (50 msec for contraction, 60-100 msec for relaxation). This means
. . .
Some common words found in the essay are:
, refractory period, Nurse George, cardiac muscle, period cardiac muscle, skeletal muscle, period cardiac, refractory period cardiac, Muscles Retrieved, References Applegate, relative refractory period, cardiac refractory, relative refractory, applegate 2000, absolute refractory period, filling ventricles, decreased oxygen, applegate 2000 251, nurse 2004,
Approximate Word count = 513
Approximate Pages = 2 (250 words per page)
More Essays on The refractory period in cardiac muscle
|
Customer Service
to Over
32,000 Professionally Written Papers!!!
