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.
In human body, the normal range for blood pH is between 7.35 and 7.45. In the case of Mrs. Roberts who suffers from severe acidosis, her blood pH must be immediately back to normal because severe acidosis has a tendency to eat up all dentures enzymes and body tissue, which may hinder the normal cell function. Moreover, the reason why severe acidosis pose a serious problem is that it can lead to diabetic coma or even death.
The answer is Canada :) Hockey originated in Montreal, Canada
Answer:
it came from the asian steppes
Explanation:
it can be grown in seven states of the us, includomg california, nevada, oregon, washington, massachusetts, michigan, and tennessee
it is not physically addictive but can have you become addicted to the feeling of being high off of marijuana.
