Answer:
to know what is happening in the kitchen
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.
C. High-visibility clothing is important to wear in areas with moving vehicles.
If the child’s urine output decreases to less than 100ml/24
hr and the creatinine clearance is 69 ml/min, plus an irregular apical pulse
with a diagnosis of acute renal failure, the serum level requires immediate
intervention is a potassium 6.1 mEq/L.
Acute appendicitis --> surgical emergency to prevent life-threatening peritonitis if rupture occurs
