Bioelectric Phenomena - Introduction to Biomedical Engineering - page 798

1-u

dn/dt

n

1

1
V

f(u)
alpha n

1
n

s

Integrator

f(u)
Beta n

1-u

m

dm/dt

1

1
V

f(u)
alpha m

1
m

s

Integrator

f(u)
Beta m

1-u

V

1

f(u)
alpha h

dh/dt h

1

1
h

f(u)
Beta h

FIGURE 12.32 SIMULINK program for the alpha and beta terms in Equations (12.43), (12.45) and (12.46).

Outside

G K G l

R Th R Th R Th G Na

V m

C m C m C m C m V m

V m V m

- - - - - -

E K

V TH V TH V TH E Cl

E Na

+ + + + + +

R a R a

Inside

FIGURE 12.33 A segment of the axon with active and passive compartments.