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18 Cards in this Set

  • Front
  • Back
communication between two or more vessels
anastomosis
time period from the end of one cardiac contraction the end of another.
cardiac cycle
period of time when the myocardium is relaxed and cardiac filling and coronary perfusion occur
diastole
the period of the cardiac cycle when the myocardium is contracting
systole
pertaining to the heart rate
chronotrophy
pertaining to the cardiac contractile force
inotropy
the speed of impulse transmission
dromotropy
specialized bands of tissues inserted between myocardial cells that increase the rate in which teh action potential is spread from cell to cell
intercalated discs
group of cardiac muscle cells that physiologically function as a unit
syncytium
reversal of the charges at a cell membrane so that the inside of the cell becomes positive in relation to the outside
cardiac depolarization
normal electrical state of cardiac cells
resting potential
stimulation of myocardial cells
action potential
returning of a cell to it's resting state
repolarization
ability of the cell to react to electrical stimulus
excitability
ability of a cell to propagate the electrical impulse from one cell to another
conductivity
pacemaker cells capability of self-depolarization
automaticity
ability of muscle cells to contract or shorten
contractility
law of physiology that blood flow through a vessel is directly proportional to the radius of the vessel to the 4th power
poiseuille's law