Page 203 - Color Atlas Of Pathophysiology (S Silbernagl Et Al, Thieme 2000)

IV + V
ES
Cardiac Rhythm

of
7
Single extrasystole Tachycardia
6 Abnormalities
8 Membrane
potential Normal

–100
E K + (after Noble)
Synchronized
myocardial excitation Plate 7.9 + 7.10
Potential (mV) –50

with normal potential Hyperkalemia
of Purkinje fibers
0.5 1 2 5 10 20
Hypokalemia Extracellular K concentration (mmol/L)
+
Reentry 5
in
depolarized Digitalis Anoxia etc.
Purkinje fibers
9 10
Purkinje fibers
dV 11
___
dt
Normal
Rapid
+
Na current
Ability to activate rapid Na + current

0 ϑ
–90 –55 mV
Diastolic potential
Desynchronized
myocardial excitation
Ventricular fibrillation 193

Silbernagl/Lang, Color Atlas of Pathophysiology © 2000 Thieme
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