The SA Node is the heart's normal pacemaker. When the SA Node depolarizes, electrical signal spreads through the atrial muscle causing contraction.
Explanation:
Inherent rhythmicity / automaticity - The property of the pacemaker cells of the heart to start electrical sequence of depolarization and repolarization.
SA Node or Sino-atrial Node generates the electrical signal.
The electrical signal passes through internodal pathways, atrial fibres, atrioventricular node (AV Node), the bundle of His, Purkinje fibres, right bundle branch, left bundle branch.
Systole - Contraction of cells when the electrical signal of depolarization reaches the contractile cells.
Diastole - Relaxation of cells when the electrical signal of repolarization reaches the myocardial cells.
It can be a chemical imbalance in the brain, a traumatic event, bad home life, etc.
The journey begins soon as you take a bite out of the sandwhich. your sliva starts to get heaver. You start chewing it and it goes down your esphoquist. Then down into your stomach. Your gut starts to work to get all the nutrinous from it. Then the waste. you know what happens to the waste. You use the restroom ( this is not meant to be funny take this sersouliy).
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Hi !
Answer:
The decision whether to provide artifical hydration should consider client preferences and goals.
<em>Ethical principles dictate that client preferences should be respected and that clients/family members have the right to make decisions about artificial nutrition and hydration at the end of life.</em>
