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Pnuemonia is a common respiratory infection caused by excess fluid in the lung sacs. The purpose of white blood cells are to fight off infections. When the white blood cell count in higher than normal, this means the persons body, in this case your sister, is fighting off an infection. Secretions are the body's way of clearing mucus out of the lungs. The two main ways to clear the mucus out of lungs are the mucocilary systems and basic coughing. Her body has a higher amount of secretions directly due to the respiratory infection. Draining fluid out of her lungs is the best option now if medications are not helping. The way to drain the fluid is by a nasal tube inserted through her nasal cavity typically done while one is put asleep by general anesthesia.
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.
Answer:
<h3>A social</h3>
Explanation:
because that what define the world heath organization
C experiment because you can do experiments on people by giving them extra sugar to see who they react
